dataset stringclasses 6
values | id stringlengths 12 16 | question stringlengths 4 758 | choices listlengths 4 4 | answer stringclasses 4
values | support stringlengths 0 7.76k ⌀ |
|---|---|---|---|---|---|
sciq | sciq_01_08823 | How many valence electrons does helium have? | [
"six",
"three",
"Five",
"two"
] | D | Helium may seem to be an exception, since it has only two valence electrons. This has to do with the fact that the n = 1 energy level has one s orbital and no p orbitals. As a result, the first energy level can be completely filled by just two electrons. It is the presence of a filled valence shell that gives noble gas... |
math_qa | mathqa_03_04608 | a man invests rs . 6,000 at the rate of 5 % per annum . how much more should he invest at the rate of 8 % , so that he can earn a total of 6 % per annum ? | [
"rs . 1200",
"rs . 1300",
"rs . 1500",
"rs . 3000"
] | D | "explanation : interest on rs . 6000 at 5 % per annum = ( 6000 × 5 × 1 ) / 100 = rs . 300 let his additional investment at 8 % = x interest on rs . x at 8 % per annum = ( x × 8 × 1 ) / 100 = 2 x / 25 . to earn 6 % per annum for the total , interest = ( 6000 + x ) × 6 × 1 / 100 . = > 300 + 2 x / 25 = ( 6000 + x ) × 6 × ... |
sciq | sciq_01_05476 | What is the name for the line dividing the earth's hemispheres? | [
"plate",
"equator",
"latitude",
"longitude"
] | B | |
sciq | sciq_01_09334 | Most modern seed plants are angiosperms that produce seeds in the what of flowers? | [
"kidneys",
"ovaries",
"lungs",
"stems"
] | B | Most modern seed plants are angiosperms that produce seeds in the ovaries of flowers. |
medmcqa | medmcqa_05_04494 | In post-ductal coarctation of aoa, blood flow to the lower limbs is maintained by increased blood flow through | [
"Inferior phrenic and pericardio phrenic aery",
"Intercostal and superior epigastric aery",
"Subcostal and umbilical aery",
"Veebral and anterior spinal aery"
] | B | The blood flow to the lower limb is maintained more likely by intercostal and superior epigastric aeries than veebral and anterior spinal aeries. In the postductal coarctation of the aoa, an extensive collateral circulation develops from the axillary aery, subclan aery, and costocervical trunk to send blood into the di... |
ARC-Easy | arc_04_01747 | Which of the following events involves a consumer and producer in a food chain? | [
"A cat eats a mouse.",
"A deer eats a leaf.",
"A hawk eats a mouse.",
"A snake eats a rat."
] | B | null |
medmcqa | medmcqa_05_02069 | Dementia of Alzheimer's type is not associated with one of the following: | [
"Depressive symptoms",
"Delusions",
"Apraxia and aphasia",
"Cerebral infarcts"
] | D | Alzheimer's disease is a type of Coical dementia -Cognitive impairment Amnesia Disturbance of memory Apraxia Aphasia -Behavioral and psychological symptoms of depression Personality changes Delusion / Hallucinations Catastrophic reaction Cerebral infarcts are associated with vascular dementia |
openbookqa | obqa_02_04467 | What is changed when an object is painted? | [
"chemical makeup",
"light absorption",
"sunshine",
"rust"
] | B | painting an object a color causes that object to be that color |
sciq | sciq_01_01963 | What are small, icy objects that have very elliptical orbits around the sun? | [
"comets",
"craters",
"asteroids",
"meteors"
] | A | Comets are small, icy objects that have very elliptical orbits around the Sun. Their orbits carry them from the outer solar system to the inner solar system, close to the Sun. Early in Earth’s history, comets may have brought water and other substances to Earth during collisions. |
sciq | sciq_01_08647 | During the condensation reaction of sugars what is removed, linking the two sugars? | [
"hormones",
"water",
"chlorophyll",
"air"
] | B | The simple sugars form the foundation of more complex carbohydrates. The cyclic forms of two sugars can be linked together by means of a condensation reaction. The figure below shows how a glucose molecule and a fructose molecule combine to form a sucrose molecule. A hydrogen atom from one molecule and a hydroxyl group... |
medmcqa | medmcqa_05_03690 | Cephalic index is most useful in the identification of - | [
"Age",
"Sex",
"Religion",
"Race"
] | D | Cephalic index is used for the determination of race. Race determination of skeleton
A) Cephalic Index
(C) Cephalic index is defined as the index of the breadth of the skull.
Cephalic index = Max. the breadth of the skull —————————— Max. AP length of skull x 100
Based on cephalic index races are classified into follo... |
sciq | sciq_01_00036 | What type of plate boundaries produce huge mountain ranges in the ocean basin? | [
"tractional",
"divergent",
"parallel",
"coherent"
] | B | Divergent plate boundaries produce huge mountain ranges under water in every ocean basin. |
medmcqa | medmcqa_05_04902 | Baby with diarrhoea presents with restlessness, irritability sunken eyes and baby is thirsty and drinks eagerly. What is the diagnosis of this child? | [
"No dehydration",
"Some dehydration",
"Severe dehydration",
"Very Severe dehydration"
] | B | Some dehydration
Child is restless, irritable.
Sunken eyes
Absent tears
Child is thirsty and drinks eagerly.
Skin pinch goes back slowly. |
sciq | sciq_01_08325 | What is the industrial chemical produced in greatest quantity worldwide? | [
"boric acid",
"liquid acid",
"sulfuric acid",
"gaseous acid"
] | C | Sulfuric acid is the industrial chemical produced in greatest quantity worldwide. About 90 billion pounds are produced each year in the United States alone. Write the Lewis structure for sulfuric acid, H2SO4, which has two oxygen atoms and two OH groups bonded to the sulfur. 7.5 Strengths of Ionic and Covalent Bonds 64... |
sciq | sciq_01_02732 | What is the main difference between eukaryotic and prokaryotic cells? | [
"prokaryotic cells have a nucleus",
"eukaryotic cells have a nucleus",
"eukaryotic cells have a cell wall",
"eukaryotic cells have a flagella"
] | B | There are two basic types of cells, prokaryotic cells and eukaryotic cells . The main difference between eukaryotic and prokaryotic cells is that eukaryotic cells have a nucleus . The nucleus is where cells store their DNA , which is the genetic material. The nucleus is surrounded by a membrane. Prokaryotic cells do no... |
sciq | sciq_01_00766 | Motion of water molecules helps break up interactions between what? | [
"ions or hormones",
"acids and bases",
"enzymes and acids",
"solid ions or molecules"
] | D | Motion of water molecules helps break up interactions between solid ions or molecules. |
openbookqa | obqa_02_00420 | What happens after something dies? | [
"chance",
"rot",
"luck",
"magic"
] | B | dead organisms rot |
medmcqa | medmcqa_05_02850 | A newborn has his leg inveed and the dorsum of his foot does not touch the front of tibia. What is the diagnosis of this condition? | [
"Congenital veical talus",
"Congenital talipes equino varus",
"Cerebral palsy",
"Poliomyelitis"
] | B | Congenital clubfoot (equinovarus foot; talipes equinovarus): It is characterized by fixed ankle plantar flexion (equinus), inversion and axial internal rotation of the subtalar (talocalcaneal) joint (varus), and medial subluxation of the talonavicular and calcaneocuboid joints (adductus). The typical radiographic findi... |
math_qa | mathqa_03_01910 | the perimeter of one face a of cube is 20 cm . its volume must be | [
"125 cm 3'",
"400 cm 3'",
"1000 cm 3'",
"8000 cm 3'"
] | A | solution edge of the cube = ( 20 / 4 ) cm ‹ = › 5 cm . volume = ( 5 × 5 × 5 ) cm 3 ‹ = › 125 cm 3 . answer a |
sciq | sciq_01_07608 | Oceans are made of a solution of what? | [
"salt and water",
"salt and carbon",
"water and carbon",
"salt and algae"
] | A | Flickr:xiquinhosilva. Oceans are made of a solution of salt and water . CC BY 2.0. |
openbookqa | obqa_02_00131 | What covers over 90% of the Earth's surface and 0% of the moon's surface | [
"a magnesium iron silicate mineral",
"chemical element with the symbol S",
"the element with the symbol Fe",
"that which contains 2 hydrogen and 1 oxygen molecules"
] | D | the moon does not contain water |
sciq | sciq_01_01961 | What law states that energy cannot be created or destroyed? | [
"difference of energy",
"conservation of energy",
"conservation of force",
"deposit of energy"
] | B | In any chemical reaction, there is no overall change in the amount of energy. Energy cannot be created or destroyed. This is the law of conservation of energy. |
openbookqa | obqa_02_04466 | Who stalks dragonflies south? | [
"clouds",
"electricity",
"kestrels",
"polar bears"
] | C | migration is when animals move themselves from a cooler climate to a warmer climate for the winter |
ARC-Challenge | arc_04_02891 | The weight of heavy machinery compacts soil, especially when it is wet. Why do farmers avoid driving their machinery across wet ground? | [
"Compacted soil will absorb too much water.",
"Plants cannot grow when soil is compacted.",
"Minerals are destroyed when soil is compacted.",
"Compacted soil increases soil acidity."
] | B | null |
medmcqa | medmcqa_05_02134 | Patch test is read after: | [
"2 hrs",
"2 days",
"2 wks",
"2 months"
] | B | Patches are commonly applied on upper back for 48 hrs. Patch test First reading is taken after 48 hrs i.e at 2 days 2nd reading on day 4 i.e 96 hrs Evaluation of patch test reading: Grading Evaluation Clinical findings +- Doubt reaction Faint erythema + Weak (non-vesicular) +ve reaction Erythema, infiltration, and disc... |
sciq | sciq_01_10795 | What term means that only molecules or ions of a certain size, shape, polarity or charge are capable of passing through the material? | [
"selective permeation",
"induced permeation",
"classic permeation",
"radiation permeation"
] | A | Osmosis and Osmotic Pressure of Solutions A number of natural and synthetic materials exhibit selective permeation, meaning that only molecules or ions of a certain size, shape, polarity, charge, and so forth, are capable of passing through (permeating) the material. Biological cell membranes provide elegant examples o... |
medmcqa | medmcqa_05_00334 | The effect of neuromuscular blocking drugs is measured as the depression of adductor muscle contraction following electrical stimulation of which nerve:- | [
"Ulnar nerve",
"Median nerve",
"Radial nerve",
"Occipital nerve"
] | A | Different stimulation - Single Twitch Tetanus Train of four stimulus (most common) Double burst stimulation Post - tetanic count Nerves used - ulnar nerve (most common)(Adductor pollicis muscle ) Facial nerve Posterior tibial nerve External peroneal nerve |
sciq | sciq_01_01477 | In plants, pigment molecules absorb only visible light for photosynthesis. the visible light seen by humans as white light actually exists in a what? | [
"transparency",
"rainbow of colors",
"vacuum",
"invisible spectrum"
] | B | Absorption of Light Light energy enters the process of photosynthesis when pigments absorb the light. In plants, pigment molecules absorb only visible light for photosynthesis. The visible light seen by humans as white light actually exists in a rainbow of colors. Certain objects, such as a prism or a drop of water, di... |
math_qa | mathqa_03_04664 | in n is a positive integer less than 200 , and 18 n / 60 is an integer , then n has how many different positive prime factors ? | [
"2",
"3",
"5",
"6"
] | A | "( a ) . 18 n / 60 must be an integer . = > 3 n / 10 must be an integer . hence n must be a multiple of 2 * 5 . = > n has 2 different prime integers ." |
medmcqa | medmcqa_05_00739 | Which one of the following is used as an irrigation solution during transurethral resection of the prostate | [
"1.5% glycine",
"Physiological saline",
"Ringer's lactate",
"5% dextrose"
] | A | 1.5% isotonic glycine for irrigation in TURP.The risks of hyponatraemia are reduced by using this. Reference : page1351 Bailey and Love's sho practice of surgery 25th edition |
medmcqa | medmcqa_05_00264 | Commonest site of liquifactive necrosis is | [
"Brain",
"Kidney",
"Liver",
"Spleen"
] | A | Ans. a (Brain). (Ref. Robbins, Pathologic Basis of Disease, 8th/pg.7-13)NECROSIS# Enzymatic degradation of a cell resulting from exogenous injury.# Characterized by enzymatic digestion and protein denaturation, with release of intracellular components.# Morphologically occurs as coagulative (heart, liver, kidney), liqu... |
sciq | sciq_01_01935 | The majority of solids are what in nature? | [
"liquids",
"gases",
"crystalline",
"complex"
] | C | The majority of solids are crystalline in nature. A crystal is a substance in which the particles are arranged in an orderly, repeating, three-dimensional pattern. Particles of a solid crystal may be ions, atoms, or molecules, depending on the type of substance. The three-dimensional arrangement of a solid crystal is r... |
sciq | sciq_01_07420 | The loss of oxygen to the heart muscle causes that part of the tissue to what? | [
"die",
"beat erratically",
"beat harder",
"thrive"
] | A | The image below shows the way in which a blocked coronary artery can cause a heart attack. The loss of oxygen to the heart muscle cause that part of the tissue to die. Maybe one day, stem cell therapy will allow for the replacement of the dead cells with new cardiac muscle cells. |
ARC-Challenge | arc_04_02445 | Which statement best describes a liquid sample? | [
"It will retain its volume if transferred to a larger container.",
"It keeps its shape when transferred to a larger container.",
"Its volume can be greatly reduced by adding pressure.",
"Its shape can be changed by increasing its temperature."
] | A | null |
sciq | sciq_01_09909 | What is defined as the amount of force acting on a given area? | [
"resistance",
"power",
"energy",
"pressure"
] | D | Pressure is defined as the amount of force acting on a given area. Therefore, pressure can be represented by this equation:. |
openbookqa | obqa_02_00705 | Sunlight can | [
"make eyes more visible",
"bounce from a rod",
"create a real problem",
"blind a garden gnome"
] | B | light enters the eye through the pupil |
math_qa | mathqa_03_00851 | the number 0.8 is how much greater than 1 / 8 ? | [
"½",
"27 / 40",
"1 / 50",
"1 / 500"
] | B | let x be the difference then . 8 - 1 / 8 = x 8 / 10 - 1 / 8 = x x = 27 / 40 ans b |
medmcqa | medmcqa_05_01928 | Among the toxin produced by Clostridium botulinum, the non neurotoxic one is | [
"A",
"B",
"C1",
"C2"
] | D | (D) C2 # Classification: Eight types of Cl. botulinum have been identified (Types A, B, Cl, C2, D, E, F, G) based on the immunological difference in the toxins produced by them. The toxins produced by the different types are identical in their pharmacological activity but are neutralised only by the homologous antiseru... |
math_qa | mathqa_03_02845 | at what rate percent on simple interest will rs . 800 amount to rs . 950 in 5 years ? | [
"3.75 %",
"5.93 %",
"4.75 %",
"5.33 %"
] | A | "150 = ( 800 * 5 * r ) / 100 r = 3.75 % answer : a" |
medmcqa | medmcqa_05_02290 | Best index of contraceptive efficacy is- | [
"Pearl index",
"Chandelers index",
"Quetlet index",
"Broca index"
] | A | Ans. is 'a' i.e., Pearl index o For contraceptive efficacy two method are used Pearl index Life table analysis (Better measure than Pearl index) |
sciq | sciq_01_06620 | What is a polymer formed by chain addition reactions between monomers that contain a double bond called? | [
"an addition monolayer",
"a branched polymer",
"an addition polymer",
"a linear polymer"
] | C | An addition polymer is a polymer formed by chain addition reactions between monomers that contain a double bond. Molecules of ethene can polymerize with each other under the right conditions to form the polymer called polyethylene. |
sciq | sciq_01_10063 | What is the name of the process that changes some chemical substances into others? | [
"hypodermic reaction",
"acid reaction",
"chemical reaction",
"mixture"
] | C | A chemical reaction is a process that changes some chemical substances into others. It involves breaking and forming chemical bonds. Types of chemical reactions include synthesis reactions and decomposition reactions. |
sciq | sciq_01_06175 | From what did the first proto-oncogenes arise? | [
"carcinogens",
"spores",
"viral infections",
"bacteria"
] | C | |
ARC-Challenge | arc_04_02299 | Which term is used to describe a physical property of a mineral? | [
"organic",
"solid",
"gaseous",
"fossiliferous"
] | B | null |
openbookqa | obqa_02_04479 | With the addition of thrusters your forward momentum will | [
"stop",
"increase",
"decrease",
"stall"
] | B | a force continually acting on an object in the same direction that the object is moving can cause that object 's speed to increase in a forward motion |
math_qa | mathqa_03_03936 | one - third less than 15 % of 180 is equal to : | [
"18",
"30",
"35",
"40"
] | A | "lots of ways to tackle this . 15 % of 180 = 27 1 / 3 of 27 = 9 so , 1 / 3 less than 27 is equal to 27 - 9 = 18 answer : a" |
openbookqa | obqa_02_04243 | a car engine usually converts gasoline into motion and heat through what? | [
"air",
"hot peppers",
"water",
"fiery reaction"
] | D | a car engine usually converts gasoline into motion and heat through combustion |
medmcqa | medmcqa_05_04949 | Slate-like discoloration of skin? | [
"Amiodarone",
"Minocycline",
"Hydroxyurea",
"Clofazimine"
] | B | Minocycline = blue-black pigmentation (Slate like) |
math_qa | mathqa_03_02788 | if all the 6 are replaced by 9 , then the algebraic sum of all the numbers from 1 to 100 ( both inclusive ) varies by | [
"330",
"340",
"350",
"360"
] | A | 1 11 21 . . . . . . . 91 2 12 22 . . . . . . . . 92 3 13 23 . . . . . . . . 93 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . there are total 20 occurrence of 6 . once place at 6 th row in every column and tens place in 6 th column and diff of 6 and 9 is 3 so 3 * 1 * 10 + 3 * 10 * 10 = 330 answer : a |
medmcqa | medmcqa_05_03822 | Female patient with male like voice. Type of thyroplasty done: | [
"I",
"II",
"III",
"IV"
] | D | Ans. (d) IVThere are 4 types of thyroplasty done, depending on the pathology* Type I: Medialization (Done for Abducted Vocal Cord)* Type II: Lateralization(Done for Adducted Vocal Cord)* Type III: Relaxation, shortening (in order to lower down the pitch)* Type IV: tensioning, Lengthening (in order to increase the pitch... |
sciq | sciq_01_04307 | What form because water erodes the outside of curves and deposits eroded material on the inside? | [
"meanders",
"caverns",
"inlets",
"cascades"
] | A | Meanders form because water erodes the outside of curves and deposits eroded material on the inside. Over time, the curves shift position. |
ARC-Easy | arc_04_00118 | Which energy type is common enough in Nevada to make a significant contribution to the renewable energy needs of the state? | [
"coal",
"geothermal",
"natural gas",
"petroleum"
] | B | null |
openbookqa | obqa_02_00726 | The moon orbits an object that orbits the | [
"Earth",
"moon",
"sun",
"Mars"
] | C | the moon orbits the Earth |
math_qa | mathqa_03_00150 | jar x is 1 / 4 full of water . jar y , which has half the capacity of jar x , is 1 / 2 full of water . if the water in jar y is poured into jar x , then jar x will be filled to what fraction of its capacity ? | [
"2 / 5",
"1 / 4",
"1 / 3",
"1 / 2"
] | D | "let p be the capacity of jar x . the amount of water in jar y is 1 / 2 * p / 2 = p / 4 then the total amount in jar x is p / 4 + p / 4 = p / 2 the answer is d ." |
openbookqa | obqa_02_01759 | What object would be most attracted to a magnet? | [
"A feather",
"A brush",
"A pillow",
"A zipper"
] | D | if a magnet is attracted to a metal then that magnet will stick to that metal |
ARC-Easy | arc_04_01086 | How hot is it on the surface of the Sun? | [
"Not quite as hot as boiling water",
"About as hot as fire",
"About 100°F",
"Much hotter than almost anything on Earth"
] | D | null |
ARC-Easy | arc_04_00401 | A student is working on a science project display for the school science fair. To best communicate why her conclusions are valid, what should be included on the display? | [
"a list of authoritative sources that supports her conclusion",
"instructions for viewers to repeat her procedures",
"clearly illustrated diagrams of the scientific principles involved",
"a complete write-up of her experimental method and data collected"
] | D | null |
medmcqa | medmcqa_05_01130 | Mobile bone of skull: | [
"Maxilla",
"Mandible",
"Ethmoid",
"Sphenoid"
] | B | Temporomandibular joint is a synovial joint allowing free movements of mandible. |
sciq | sciq_01_07077 | Segmented worms have a digestive,nervous and what type of system? | [
"pulmonary",
"vascular",
"circulatory",
"lymphatic"
] | C | Segmented worms have a digestive system, nervous system, and circulatory system. |
sciq | sciq_01_02761 | What forms when a solute dissolves in a solvent? | [
"liquid",
"solution",
"chemical",
"gas"
] | B | A solution forms when a solute dissolves in a solvent. The rate of dissolving is faster with stirring, a higher temperature, or greater surface area. Many solutes are soluble in water because water is polar. |
medmcqa | medmcqa_05_03947 | Which one of the following does not pass through the lungs? | [
"Hookworm",
"Ascaris",
"Strongyloidis",
"Enterobius vermicularis"
] | D | Ans. (d) Enterobius vermicularis |
math_qa | mathqa_03_00120 | a person can swim in still water at 20 km / h . if the speed of water 12 km / h , how many hours will the man take to swim back against the current for 40 km ? | [
"3",
"4",
"5",
"6"
] | C | "m = 20 s = 12 us = 20 - 12 = 8 d = 40 t = 40 / 8 = 5 answer : c" |
sciq | sciq_01_02687 | What is the temperature where molecular motion stops? | [
"Absolute Freezing",
"absolute zero",
"Final Zero",
"mean zero"
] | B | Absolute zero is the temperature where molecular motion stops and is the lowest possible temperature. |
sciq | sciq_01_09416 | The lungs perform gas exchange using air and what fluid, which is coming and going from the heart? | [
"saliva",
"mucus",
"blood",
"water"
] | C | Blood Supply The major function of the lungs is to perform gas exchange, which requires blood from the pulmonary circulation. This blood supply contains deoxygenated blood and travels to the lungs where erythrocytes, also known as red blood cells, pick up oxygen to be transported to tissues throughout the body. The pul... |
medmcqa | medmcqa_05_01607 | Burkitt&;s lymphoma is positive for- | [
"CD5",
"CD 15",
"CD 20",
"CD 25"
] | C | Burkitt lymphomas are tumours of mature B cells that express surface IgM, CD19, CD20, CD10 and BCL6 ,a phenotype consistent with a germinal centre B cell origin. Reference : Robbins and Cotran Pathologic basis of disease.South Asia Edition volume 1.page no. 597 |
math_qa | mathqa_03_01682 | a thief is spotted by a policeman from a distance of 100 meters . when the policeman starts the chase , the thief also starts running . if the speed of the thief be 8 km / hr and that of the policeman 10 km / hr , how far the thief will have run before he is overtaken ? | [
"350 m",
"200 m",
"400 m",
"500 m"
] | C | "relative speed of the policeman = ( 10 - 8 ) km / hr = 2 km / hr . time taken by police man to cover ( 100 m / 1000 ) x 1 / 2 hr = 1 / 20 hr . in 1 / 20 hrs , the thief covers a distance of 8 x 1 / 20 km = 2 / 5 km = 400 m answer is c ." |
sciq | sciq_01_08300 | What type of activity in the brain causes epilepsy? | [
"abnormal electrical activity",
"bleeding",
"toxic overload",
"hormone imbalance"
] | A | Epilepsy is a disease that causes seizures. A seizure is a period of lost consciousness that may include violent muscle contractions. It is caused by abnormal electrical activity in the brain. The cause of epilepsy may be an infection, a brain injury, or a tumor. The seizures of epilepsy can often be controlled with me... |
openbookqa | obqa_02_03974 | pollination is when wind carry pollen from one flower to another | [
"genetically similar thing",
"rock",
"cloud",
"water"
] | A | pollination is when wind carry pollen from one flower to another flower |
openbookqa | obqa_02_03471 | Robert has only has power downstairs. In order to move the light from downstairs to his upstairs bedroom, he can | [
"Just stay in the downstairs rooms",
"set up an array of drinking glasses",
"set up an array of mirrors",
"Unscrew a light bulb downstairs and move it upstairs"
] | C | a mirror reflects light |
medmcqa | medmcqa_05_04011 | DSM-IV criterion for depression is | [
"1 week",
"2 week",
"3 week",
"4 week"
] | B | The duration of symptoms of depression according to DSM-5 diagnostic criteria for major depression is 2 weeks. DSM IV is older version of DSM., present version is 5th. |
math_qa | mathqa_03_02864 | a rock is dropped into a well and the distance traveled is 16 t 2 feet , where t is the time . if the water splash is heard 3 seconds after the rock was dropped , and that the speed of sound is 1100 ft / sec , approximate the height of the well | [
"134.8 feet",
"136.2 feet",
"132.7 feet",
"132.2 feet"
] | C | let t 1 be the time it takes the rock to reach the bottom of the well . if h is the height of the well , we can write h = 16 t 1 2 let t 2 be the time it takes sound wave to reach the top of the well . we can write h = 1100 t 2 the relationship between t 1 and t 2 is t 1 + t 2 = 3 eliminate h and combine the equations ... |
ARC-Easy | arc_04_00195 | A shallow container of salt water is placed in sunlight for a day. Which is the most likely result? | [
"All of the mixture will evaporate.",
"The salt will keep the water from evaporating.",
"The salt will separate from the water and float at the top of the container.",
"Only the water will evaporate and the salt will remain in the container."
] | D | null |
sciq | sciq_01_08507 | In great apes, what process lasts 8-9 months and usually results in the birth of a single offspring? | [
"gestation",
"mating",
"hibernation",
"reproduction"
] | A | Gestation (pregnancy) lasts 8-9 months and usually results in the birth of a single offspring. The young are born helpless, and thus, they need parental care for long periods of time. Compared with most other mammals, great apes have a long adolescence and are not fully mature until 8-13 years of age (longer in humans)... |
medmcqa | medmcqa_05_01583 | Enzymes required for mRNA synthesis is/are ? | [
"RNA polymerase I",
"RNA polymerase II",
"Primase",
"Topoisomerase"
] | B | Ans. is 'b' i.e., RNA polymerase II It catalyzes the synthesis of mRNA, small nuclear RNA (sn-RNA) and miRNA.These products are coded by class II gene, i.e. class II gene is transcribed by mRNA.Class II gene differ from class I and III in that one of its transcribed products (mRNA) is translated into protein. |
openbookqa | obqa_02_03759 | Which is true? | [
"balloons and stars are composed of exactly the same materials",
"balloons and stars are the same size",
"stars and balloons share some of the same gases",
"balloons and stars contain sodium"
] | C | a star is made of gases |
openbookqa | obqa_02_02301 | A huckleberry patch will only grow if it receives | [
"nutriment",
"grass",
"frost",
"sand"
] | A | an plant requires food for survival |
math_qa | mathqa_03_03474 | if y is the smallest positive integer such that 1260 multiplied by y is the square of an integer , then y must be | [
"25",
"35",
"60",
"75"
] | B | "1260 = 2 ^ 2 * 3 ^ 2 * 5 * 7 to be perfect square , we need to multiply by at least 5 * 7 = 35 . the answer is b ." |
openbookqa | obqa_02_04686 | There are 4 seasons a year, meaning a new one | [
"starts every day",
"starts every quarter",
"is fake",
"is seven"
] | B | a new season occurs four times per year |
sciq | sciq_01_04019 | What laws regulate radiation doses to which people can be exposed? | [
"medical regulation laws",
"dose regulation laws",
"voltage protection laws",
"radiation protection laws"
] | D | Radiation Protection Laws regulate radiation doses to which people can be exposed. The greatest occupational whole-body dose that is allowed depends upon the country and is about 20 to 50 mSv/y and is rarely reached by medical and nuclear power workers. Higher doses are allowed for the hands. Much lower doses are permi... |
math_qa | mathqa_03_02170 | if 4 xz + yw = 4 and xw + yz = 8 , what is the value of the expression ( 2 x + y ) ( 2 z + w ) ? | [
"22",
"20",
"24",
"26"
] | B | ( 2 x + y ) * ( 2 z + w ) = 4 + 2 ( 8 ) = 20 answer : b |
medmcqa | medmcqa_05_01729 | Most common indication for Liver Transplant in paediatric Patients is | [
"Fulminant liver failure",
"Hepatitis",
"Biliary atresia",
"Cirrhosis"
] | C | * MC indication for Liver transplant in Children- Biliary atresia * MC indication for Liver transplant in Adults - HCV induced cirrhosis * MC metabolic indication for Liver transplant- Alpha 1 AT deficiency Ref:- Surgery Sixer 3rd Editio; Pg num:- 153 |
math_qa | mathqa_03_03641 | if a rectangular billboard has an area of 104 square feet and a perimeter of 42 feet , what is the length of each of the longer sides ? | [
"4",
"7",
"8",
"13"
] | D | "this question can be solved algebraically or by testing the answers . we ' re told that a rectangle has an area of 104 and a perimeter of 42 . we ' re asked for the length of one of the longer sides of the rectangle . since the answers are all integers , and the area is 104 , the shorter side will almost certainly be ... |
math_qa | mathqa_03_00937 | 12 is 6 % of a , and 6 is 12 % of b . c equals b / a . what is the value of c ? | [
"1 / 2",
"1 / 3",
"1 / 4",
"1 / 6"
] | C | 6 a / 100 = 12 a = 200 12 b / 100 = 6 b = 50 c = b / a = 50 / 200 = 1 / 4 the answer is c . |
openbookqa | obqa_02_00706 | One of the earth's layer's is it's crust. It can be found | [
"just above it's mantle",
"in the center of the earth",
"on top of the moon",
"close to the sun"
] | A | the mantle is located just below Earth 's crust |
sciq | sciq_01_02928 | What causes waves to bring sand up onto the beach during summers? | [
"low sand density",
"low energy",
"high energy",
"no energy"
] | B | Waves also move sand from the beaches on shore to bars of sand offshore as the seasons change. In the summer, waves have lower energy so they bring sand up onto the beach. In the winter, higher energy waves bring the sand back offshore. |
sciq | sciq_01_10754 | What do we call the movement of individuals into a population from other areas? | [
"immigration",
"assimilation",
"pilgrimage",
"nomadic"
] | A | Immigration is the movement of individuals into a population from other areas. This increases the population size and growth rate. |
sciq | sciq_01_08640 | Which layer of the earth is molten? | [
"the outer core",
"the inner core",
"the mantle",
"the metallic core"
] | A | The dense, iron core forms the center of the Earth. Scientists know that the core is metal. The inner core is solid, and the outer core is molten. Here are some of the reasons they know this:. |
sciq | sciq_01_05927 | What is the name of an extreme form of radiation fog? | [
"aura fog",
"smelt fog",
"tule fog",
"cedar fog"
] | C | Radiation fog forms at night. Skies are clear, and the relative humidity is high. The ground cools as temperature goes down. Air near the ground cools below its dew point. Tule fog is an extreme form of radiation fog. This type of fog strikes the Central Valley of California in winter. |
sciq | sciq_01_11493 | What physical property of matter reflects how closely packed the particles of matter are? | [
"density",
"makeup",
"build up",
"mass"
] | A | Density is an important physical property of matter. It reflects how closely packed the particles of matter are. |
medmcqa | medmcqa_05_03002 | When two objects come in contact, an exchange of trace material takes place. This is known as: PGI 08 | [
"Galton exchange",
"Locard exchange principle",
"Beillion system",
"Hasse rule"
] | B | Ans. Locard exchange principle |
math_qa | mathqa_03_00955 | harkamal purchased 8 kg of grapes at the rate of 70 per kg and 9 kg of mangoes at the rate of 65 per kg . how much amount did he pay to the shopkeeper ? | [
"a",
"b",
"c",
"d"
] | C | "cost of 8 kg grapes = 70 × 8 = 560 . cost of 9 kg of mangoes = 65 × 9 = 585 . total cost he has to pay = 560 + 585 = 1145 . c )" |
sciq | sciq_01_03013 | What common code do all known living organisms use? | [
"Morse code",
"biochemical",
"code of ethics",
"genetic"
] | D | The genetic code is universal. All known living organisms use the same genetic code. This shows that all organisms share a common evolutionary history. |
sciq | sciq_01_11487 | What biochemicals mediate changes in target cells by binding to specific receptors? | [
"enzymes",
"amino acids",
"hormones",
"acids"
] | C | 37.2 | How Hormones Work By the end of this section, you will be able to: • Explain how hormones work • Discuss the role of different types of hormone receptors Hormones mediate changes in target cells by binding to specific hormone receptors. In this way, even though hormones circulate throughout the body and come int... |
medmcqa | medmcqa_05_00488 | A 30-year-old man is stabbed in the arm. There is no evidence of vascular injury, but he cannot flex his three radial digits. He has injured the | [
"Flexor pollicis longus and flexor digitus medius tendons",
"Radial nerve",
"Median nerve",
"Thenar and digital nerves at the wrist"
] | C | The motor components of the median nerve maintain the muscular function of most of the long flexors of the hand as well as the pronators of the forearm and the thenar muscles. The median nerve is also an extremely important sensory innervator of the hand and is commonly described as the "eye of the hand" because the pa... |
math_qa | mathqa_03_01490 | the diagonals of two squares are in the ratio of 2 : 5 . find the ratio of their areas . | [
"4 : 25'",
"4 : 15'",
"3 : 25'",
"3 : 15'"
] | A | explanation : let the diagonals of the squares be 2 x and 5 x . then ratio of their areas will be area of square = 1 / 2 ∗ diagonal 2 1 / 2 ∗ 2 x 2 : 1 / 2 ∗ 5 x 2 4 x 2 : 25 x 2 = 4 : 25 option a |
openbookqa | obqa_02_03086 | If a fuel is a biofuel, it may be | [
"water",
"corn",
"sunlight",
"oil"
] | B | plants are a source of biofuel |
medmcqa | medmcqa_05_04731 | Ligament suppoing the head of talus ? | [
"Talonavicular ligament",
"Cervical ligament",
"Plantar calcaneonavicular ligament",
"Deltoid ligament"
] | C | Plantar calcaneonavicular ligament Spring ligament (Plantar calcaneonavicular ligament) connects the calcaneum with the navicular bone. o However, its principal job is to provide a sling for the talus, to suppo the head of talus (though it has no attachment to talus). This aids in suppoing the weight of the body. Weakn... |
openbookqa | obqa_02_03693 | Honolulu was formed by | [
"the gods",
"a volcanic crevasse",
"a tidal wave",
"a typhoon"
] | B | mountains are formed by volcanoes |
openbookqa | obqa_02_01286 | What can genes do? | [
"Give a young goat hair that looks like its mother's hair",
"Make a baby chubby",
"Make a horse break its leg",
"Attack viruses and bacteria"
] | A | genes are a vehicle for passing inherited characteristics from parent to offspring |
math_qa | mathqa_03_01689 | a train running at a speed of 36 km / h passes an electric pole in 14 seconds . in how many seconds will the whole train pass a 350 - meter long platform ? | [
"43",
"45",
"47",
"49"
] | D | "let the length of the train be x meters . when a train crosses an electric pole , the distance covered is its own length x . speed = 36 km / h = 36000 m / 3600 s = 10 m / s x = 14 * 10 = 140 m . the time taken to pass the platform = ( 140 + 350 ) / 10 = 49 seconds the answer is d ." |
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