question_id int32 0 11.7k | question stringlengths 14 399 | choices sequencelengths 4 4 | answer stringlengths 4 70 | documents stringlengths 2.83k 8.63k | relevant_document stringlengths 50 2.74k |
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0 | What type of organism is commonly used in preparation of foods such as cheese and yogurt? | [
"A. gymnosperms",
"B. protozoa",
"C. viruses",
"D. mesophilic organisms"
] | D. mesophilic organisms | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... | The yeast species Saccharomyces cerevisiae is an important model organism in cell biology. The fruiting bodies of some larger fungi are collected as edible mushrooms, including delicacies like the chanterelle, cep, and truffle, while a few species are cultivated. Mould fungi provide the meaty (umami) flavour of ferment... |
1 | What phenomenon makes global winds blow northeast to southwest or the reverse in the northern hemisphere and northwest to southeast or the reverse in the southern hemisphere? | [
"A. centrifugal effect",
"B. muon effect",
"C. coriolis effect",
"D. tropical effect"
] | C. coriolis effect | Document 1 ::: The paper consists of single correct type questions. There are questions from high school level physics, mathematics and some questions from general astronomy.
Document 2 ::: Extratropical cyclones in meridional flows tend to be stronger and move slower. This pattern is responsible for most instances of ... | Coriolis effect Circulation Kelvin's circulation theorem Vorticity equation Thermal wind Geostrophic current Geostrophic wind Taylor–Proudman theorem Hydrostatic equilibrium Ekman spiral Ekman layer |
2 | Changes from a less-ordered state to a more-ordered state (such as a liquid to a solid) are always what? | [
"A. unbalanced",
"B. exothermic",
"C. endothermic",
"D. reactive"
] | B. exothermic | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: Typically, the topics are, in order, descriptive chemistry/laboratory techniques, sto... | Conceptual problems are often formulated as multiple-choice questions, making them easy to use during in-class discussions, particularly when utilizing active learning, peer instruction, and audience response. An example of a conceptual question in undergraduate thermodynamics is provided below: During adiabatic expans... |
3 | What is the least dangerous radioactive decay? | [
"A. gamma decay",
"B. zeta decay",
"C. alpha decay",
"D. beta decay"
] | C. alpha decay | Document 1 ::: The first three have similar half-lives, between 200 thousand and 300 thousand years; the last four have longer half-lives, in the low millions of years. Technetium-99 produces the largest amount of LLFP radioactivity. It emits beta particles of low to medium energy but no gamma rays, so has little hazar... | The stability of nuclei decreases greatly with the increase in atomic number after curium, element 96, whose half-life is four orders of magnitude longer than that of any currently known higher-numbered element. All isotopes with an atomic number above 101 undergo radioactive decay with half-lives of less than 30 hours... |
4 | Kilauea in hawaii is the world’s most continuously active volcano. very active volcanoes characteristically eject red-hot rocks and lava rather than this? | [
"A. magma",
"B. carbon and smog",
"C. smoke and ash",
"D. greenhouse gases"
] | C. smoke and ash | Document 1 ::: : 715 "Gravity, geology, and the specific orbit of the moon lead to the tidal patterns of the Earth's oceans and thus to both the environment in which early life evolved and in which tsunamis bring death and destruction to countless thousands of people". : 717–718 Holmes Rolston III says nature embodies ... | Determine what geologic processes have shaped the local terrain and influenced the chemistry. Such processes could include water or wind erosion, sedimentation, hydrothermal mechanisms, volcanism, and cratering. |
5 | When a meteoroid reaches earth, what is the remaining object called? | [
"A. meteor",
"B. comet",
"C. meteorite",
"D. orbit"
] | C. meteorite | Document 1 ::: The paper consists of single correct type questions. There are questions from high school level physics, mathematics and some questions from general astronomy.
Document 2 ::: The content within the book is written using a question and answer format. It contains some 250 questions, which The Science Teach... | Astronomy Weather and Nature Meteors and meteorites |
6 | What kind of a reaction occurs when a substance reacts quickly with oxygen? | [
"A. nitrogen reaction",
"B. Fluid Reaction",
"C. invention reaction",
"D. combustion reaction"
] | D. combustion reaction | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: Typically, the topics are, in order, descriptive chemistry/laboratory techniques, sto... | After this initial chemistry, three main global reactions occur. Combustion products react catalytically with syngas by the water-gas shift reaction. Also, volatile organics react catalytically with steam (H2O) to form new combustion products and syngas. |
7 | Organisms categorized by what species descriptor demonstrate a version of allopatric speciation and have limited regions of overlap with one another, but where they overlap they interbreed successfully?. | [
"A. ring species",
"B. surface species",
"C. fitting species",
"D. species complex"
] | A. ring species | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... | Hybrid speciation can be a component in the evolution of a species complex. Species complexes exist in all groups of organisms and are identified by the rigorous study of differences between individual species that uses minute morphological details, tests of reproductive isolation, or DNA-based methods, such as molecul... |
8 | Alpha emission is a type of what? | [
"A. heat",
"B. radioactivity",
"C. light",
"D. radiation"
] | B. radioactivity | Document 1 ::: The paper consists of single correct type questions. There are questions from high school level physics, mathematics and some questions from general astronomy.
Document 2 ::: These are conceptual ranking-task questions that help the student before embarking on numerical calculations. The textbook covers ... | The NSEC contains only multiple choice questions. The questions include physical chemistry, organic chemistry, and inorganic chemistry. The stress on biochemistry is more in the NSEC than in the typical school syllabi. |
9 | What is the stored food in a seed called? | [
"A. endosperm",
"B. membrane",
"C. larval",
"D. pollin"
] | A. endosperm | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... | Ask A Biologist is a pre-kindergarten through high school program dedicated to answering questions from students, their teachers, and parents. The primary focus of the program is to connect students and teachers with working scientists through a question and answer Web e-mail form. The companion website also includes a... |
10 | Zinc is more easily oxidized than iron because zinc has a lower reduction potential. since zinc has a lower reduction potential, it is a more what? | [
"A. much metal",
"B. Trap metal",
"C. active metal",
"D. usually metal"
] | C. active metal | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: The NSEC contains only multiple choice questions. The questions include physical chem... | Extremely pure zinc reacts only slowly at room temperature with acids. Strong acids, such as hydrochloric or sulfuric acid, can remove the passivating layer and the subsequent reaction with the acid releases hydrogen gas.The chemistry of zinc is dominated by the +2 oxidation state. When compounds in this oxidation stat... |
11 | What is controlled by both genes and experiences in a given envionment? | [
"A. reflexes",
"B. animal behaviors",
"C. learned behaviors",
"D. instincts"
] | B. animal behaviors | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... | Genetics influence individuals as they select their environment. |
12 | What tells you how much of the food you should eat to get the nutrients listed on the label? | [
"A. serving size",
"B. scoop size",
"C. longer size",
"D. regular size"
] | A. serving size | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: The test had 50 multiple choice questions that were to be answered in one hour. All q... | The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic. |
13 | What are used to write nuclear equations for radioactive decay? | [
"A. critical symbols",
"B. radioactive symbols",
"C. nuclear symbols",
"D. trigonometric symbols"
] | C. nuclear symbols | Document 1 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students received 1 point for every correct answer, lost ¼ of a point for each incorrect answer, and received 0 points for questions left blank. The questions covered a broad range of to... | Although isotopes are more relevant to nuclear chemistry or stable isotope chemistry than to conventional chemistry, different isotopes may be indicated with a prefixed superscript in a chemical formula. For example, the phosphate ion containing radioactive phosphorus-32 is 3−. Also a study involving stable isotope rat... |
14 | What is controlled by regulatory proteins that bind to regulatory elements on dna? | [
"A. substance transcription",
"B. amino acids",
"C. mRNA",
"D. gene transcription"
] | D. gene transcription | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... | Structural gene expression is regulated by numerous factors including epigenetics (e.g. methylation), RNAi, and more. Regulatory and structural genes can be epigenetically regulated identically, so not all regulation is coded for by “regulatory genes”.There are also examples of proteins that do not decidedly fit either... |
15 | Boron only occurs naturally in compounds with what element? | [
"A. helium",
"B. nitrogen",
"C. carbon",
"D. oxygen"
] | D. oxygen | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: The NSEC contains only multiple choice questions. The questions include physical chem... | Mendeleev commented that, "Boron appears in a free state in several forms which are intermediate between the metals and the nonmmetals. "The structural chemistry of boron is dominated by its small atomic size, and relatively high ionization energy. With only three valence electrons per boron atom, simple covalent bondi... |
16 | What organ systems link exchange surfaces with cells throughout the body? | [
"A. pulmonary",
"B. nervous",
"C. circulatory",
"D. vascular"
] | C. circulatory | Document 1 ::: NBDE I consists of 400 multiple choice questions emphasizing basic sciences: 1. Human Anatomy, Embryology, and Histology 2. Biochemistry and Physiology 3.
Document 2 ::: Humans have the overall body plan of a mammal. Humans have a head, neck, trunk (which includes the thorax and abdomen), two arms and ha... | One of the challenges of 3D printing organs is to recreate the vasculature required to keep the organs alive. Designing a correct vasculature is necessary for the transport of nutrients, oxygen, and waste. Blood vessels, especially capillaries, are difficult due to the small diameter. Progress has been made in this are... |
17 | What occurs when the immune system attacks a harmless substance that enters the body from the outside? | [
"A. nausea",
"B. panic attack",
"C. allergy",
"D. plague"
] | C. allergy | Document 1 ::: ": 46 She also contended that the two studies that had failed to replicate the Uhlmann paper's results were flawed for two reasons: because they looked at cells of children with autism rather than in their GI tract, and because they did not test children with autism with gastrointestinal dysfunction. : 6... | ": 46 She also contended that the two studies that had failed to replicate the Uhlmann paper's results were flawed for two reasons: because they looked at cells of children with autism rather than in their GI tract, and because they did not test children with autism with gastrointestinal dysfunction. : 629A Immunologis... |
18 | Fertilization is the union of a sperm and egg, resulting in the formation of what? | [
"A. a cytoplasm",
"B. a nuclei",
"C. a bacteriophage",
"D. a zygote"
] | D. a zygote | Document 1 ::: In biology, polyspermy describes the fertilization of an egg by more than one sperm. Diploid organisms normally contain two copies of each chromosome, one from each parent. The cell resulting from polyspermy, on the other hand, contains three or more copies of each chromosome—one from the egg and one eac... | In biology, polyspermy describes the fertilization of an egg by more than one sperm. Diploid organisms normally contain two copies of each chromosome, one from each parent. The cell resulting from polyspermy, on the other hand, contains three or more copies of each chromosome—one from the egg and one each from multiple... |
19 | The plants alternation between haploid and diploud generations allow it to do what? | [
"A. reproduce asexually and sexually",
"B. reproduce asexually and biologically",
"C. reproduce asexually and simultaneously",
"D. reproduce sexually and autonomously"
] | A. reproduce asexually and sexually | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... | In the anther, after a microspore undergoes microsporogenesis, it can deviate towards embryogenesis and become star-like microspores. The microspore can then go one of four ways: Become an embryogenic microspore, undergo callogenesis to organogenesis (haploid/double haploid plant), become a pollen-like structure or die... |
20 | Most of the chemical reactions in the body are facilitated by what? | [
"A. proteins",
"B. vitamins",
"C. enzymes",
"D. carbohydrates"
] | C. enzymes | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: The NSEC contains only multiple choice questions. The questions include physical chem... | Biochemistry is the science of the chemical processes which takes place within living organisms. Living organisms need essential elements to survive, among which are carbon, hydrogen, nitrogen, oxygen, calcium, and phosphorus. These elements make up the four macromolecules that living organisms need to survive: carbohy... |
21 | What is the termination of a pregnancy in progress called? | [
"A. delivery",
"B. abortion",
"C. contraception",
"D. miscarriage"
] | B. abortion | Document 1 ::: NBDE I consists of 400 multiple choice questions emphasizing basic sciences: 1. Human Anatomy, Embryology, and Histology 2. Biochemistry and Physiology 3.
Document 2 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students receive... | NBDE I consists of 400 multiple choice questions emphasizing basic sciences: 1. Human Anatomy, Embryology, and Histology 2. Biochemistry and Physiology 3. |
22 | Cutting down on the use of chemical fertilizers and preserving wetlands are ways to prevent what "unlivable" regions in bodies of water? | [
"A. inhabitable zones",
"B. dead zones",
"C. hostile zones",
"D. fresh zones"
] | B. dead zones | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... | Contaminant remediation in aquifers. The decision problem is where to locate wells, and choose a pumping rate, to minimize the cost to prevent spread of a contaminant. The constraints are associated with the hydrogeological flows.Water allocation to improve wetlands. This optimization model recommends water allocation ... |
23 | Which muscles allow your fingers to also make precise movements for actions? | [
"A. fine movement muscles",
"B. paired muscles",
"C. intrinsic muscles",
"D. motoric muscles"
] | C. intrinsic muscles | Document 1 ::: Most mathematics questions, or calculation questions from subjects such as chemistry, physics, or economics employ a style which does not fall into any of the above categories, although some papers, notably the Maths Challenge papers in the United Kingdom employ multiple choice. Instead, most mathematics... | Questions are answered with on-screen interfaces (staff, piano, guitar, bass, violin, cello, banjo and other stringed instruments), a functional keyboard with scale degrees and solfege syllables, multiple-choice buttons, a MIDI instrument, or through a microphone (voice, clapping or acoustic instruments). The user can ... |
24 | Testing what usually requires making observations or performing experiments? | [
"A. homeostasis",
"B. hypothesis",
"C. variables",
"D. conclusion"
] | B. hypothesis | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... | After the on-line questions, students will take a test about what they have learned while solving the on-line questions. First grade students in high school take this test. The questions are based on basic chemistry. The test can determine how much the students understand basic chemistry. |
25 | This sharing of electrons produces what is known as a covalent bond. covalent bonds are ~20 to 50 times stronger than what? | [
"A. van der waals interactions",
"B. gravitational pull",
"C. Mendelian systems",
"D. Newton's third law"
] | A. van der waals interactions | Document 1 ::: In organic chemistry, covalent bonding is much more common than ionic bonding. Covalent bonding also includes many kinds of interactions, including σ-bonding, π-bonding, metal-to-metal bonding, agostic interactions, bent bonds, three-center two-electron bonds and three-center four-electron bonds. The ter... | The energy of a hydrogen bond depends on the geometry, the environment, and the nature of the specific donor and acceptor atoms and can vary between 1 and 40 kcal/mol. This makes them somewhat stronger than a van der Waals interaction, and weaker than fully covalent or ionic bonds. This type of bond can occur in inorga... |
26 | Water molecules move about continuously due to what type of energy? | [
"A. seismic",
"B. optical",
"C. potential",
"D. kinetic"
] | D. kinetic | Document 1 ::: These are conceptual ranking-task questions that help the student before embarking on numerical calculations. The textbook covers most of the basic topics in physics: Mechanics Waves Thermodynamics Electromagnetism Optics Special RelativityThe extended edition also contains introductions to topics such a... | In coarse-grain models, each site can represent several water molecules. Many-body models. Water models built using training-set configurations solved quantum mechanically, which then use machine learning protocols to extract potential-energy surfaces. These potential-energy surfaces are fed into MD simulations for an ... |
27 | A small scale version of what type of map displays individual rock units? | [
"A. polar map",
"B. geologic map",
"C. seismic map",
"D. geographic map"
] | B. geologic map | Document 1 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students received 1 point for every correct answer, lost ¼ of a point for each incorrect answer, and received 0 points for questions left blank. The questions covered a broad range of to... | Some universities and secondary educators are integrating digital geologic mapping into class work. For example, The GeoPad project describes the combination of technology, teaching field geology, and geologic mapping in programs such as Bowling Green State University’s geology field camp. At Urbino University (Italy)... |
28 | What is defined as a change in the inherited traits of organisms over time? | [
"A. variation",
"B. generation",
"C. evolution",
"D. divergence"
] | C. evolution | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... | : 110 For example, Jean-Baptiste Lamarck was a French naturalist who said the changes an organism makes as it adapts to its environment can be passed down to subsequent generations through gene expression (which genes get turned off). This has been taken up by the new field of epigenetics. : 160–167: 111 The mutation t... |
29 | What hormone, which is associated with luteinizing hormone and male sexuality, helps bring about physical changes in puberty? | [
"A. testosterone",
"B. epinephrine",
"C. steroids",
"D. estrogen"
] | A. testosterone | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... | Precocious puberty can be classified into central (gonadotropin-dependent) precocious puberty or peripheral (gonadotropin-independent) puberty. Peripheral precocious puberty has been linked to exposure to exogenous estrogenic compounds. Age of onset of puberty is influenced by many factors such as genetics, nutritional... |
30 | Where do angiosperms produce seeds in flowers? | [
"A. cones",
"B. germs",
"C. testes",
"D. ovaries"
] | D. ovaries | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... | Following the evolution of the seed habit, seed plants diversified, giving rise to a number of now-extinct groups, including seed ferns, as well as the modern gymnosperms and angiosperms. Gymnosperms produce "naked seeds" not fully enclosed in an ovary; modern representatives include conifers, cycads, Ginkgo, and Gneta... |
31 | In order to create food, what do photosynthetic protists use? | [
"A. light energy",
"B. thermal energy",
"C. hydrocarbons",
"D. decayed matter"
] | A. light energy | Document 1 ::: The NSEC contains only multiple choice questions. The questions include physical chemistry, organic chemistry, and inorganic chemistry. The stress on biochemistry is more in the NSEC than in the typical school syllabi.
Document 2 ::: The first part contains 60 multiple-choice questions. Each question has... | Ask A Biologist is a pre-kindergarten through high school program dedicated to answering questions from students, their teachers, and parents. The primary focus of the program is to connect students and teachers with working scientists through a question and answer Web e-mail form. The companion website also includes a... |
32 | What type of vertebrates are birds? | [
"A. invertebrates",
"B. exothermic",
"C. endothermic tetrapod",
"D. epidermal tetrapod"
] | C. endothermic tetrapod | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... | Q1 General biology Q2 Cytology Q3 Genetics Q4 Physiology Q5 Biochemistry Q6 Biophysics Q7 Molecular biology Q8 Bioengineering Q9 Zoology and botany |
33 | What type of ions do ionic compounds contain? | [
"A. positive and charged",
"B. regular and irregular",
"C. positive and negative",
"D. negative and neutal"
] | C. positive and negative | Document 1 ::: The NSEC contains only multiple choice questions. The questions include physical chemistry, organic chemistry, and inorganic chemistry. The stress on biochemistry is more in the NSEC than in the typical school syllabi.
Document 2 ::: The first part contains 60 multiple-choice questions. Each question has... | In ionic compounds, it can take on either a positive charge, becoming a cation composed of a bare proton, or a negative charge, becoming an anion known as a hydride. Hydrogen can form compounds with most elements and is present in water and most organic compounds. It plays a particularly important role in acid-base che... |
34 | All living things need air and this to survive? | [
"A. water",
"B. ecosystem",
"C. stimuli",
"D. habitat"
] | A. water | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... | : 715 "Gravity, geology, and the specific orbit of the moon lead to the tidal patterns of the Earth's oceans and thus to both the environment in which early life evolved and in which tsunamis bring death and destruction to countless thousands of people". : 717–718 Holmes Rolston III says nature embodies 'redemptive suf... |
35 | The cells of all eukarya have a what? | [
"A. chloroplast",
"B. nucleus",
"C. necrosis",
"D. epidermis"
] | B. nucleus | Document 1 ::: The student's score was based entirely on his or her performance in answering the multiple-choice questions. The questions covered a broad range of topics in general biology. There were more specific questions related respectively on ecological concepts (such as population studies and general Ecology) on... | NBDE I consists of 400 multiple choice questions emphasizing basic sciences: 1. Human Anatomy, Embryology, and Histology 2. Biochemistry and Physiology 3. |
36 | What type of plate boundaries produce huge mountain ranges in the ocean basin? | [
"A. tractional",
"B. coherent",
"C. parallel",
"D. divergent"
] | D. divergent | Document 1 ::: The test had 50 multiple choice questions that were to be answered in one hour. All questions had five answer choices. Students received 1 point for every correct answer, lost ¼ of a point for each incorrect answer, and received 0 points for questions left blank. The questions covered a broad range of to... | This stable configuration is responsible for the geometry of plate motions at the surface due as well as mantle convection. Another name for the degree two structure, a roughly 200 kilometers (120 miles) thick layer of the lower mantle directly above the core–mantle boundary, is the D″ ("D double-prime" or "D prime pri... |
37 | Interstitial carbides are produced by the reaction of most transition metals at high temperatures with what element? | [
"A. hydrogen",
"B. nitrogen",
"C. carbon",
"D. oxygen"
] | C. carbon | Document 1 ::: The first part contains 60 multiple-choice questions. Each question has four answer choices. The questions are loosely grouped into 10 sets of 6 items; each set corresponds to a different chemistry topic.
Document 2 ::: Typically, the topics are, in order, descriptive chemistry/laboratory techniques, sto... | During this stage, the methods of making active materials depend on the electrode and the chemistry. For the cathode, two of the most popular chemistry are transition metal oxides, i.e. Lithium nickel manganese cobalt oxides (Li-NMC) and Lithium metal phosphates, i.e. Lithium iron phosphates (LFP). For the anode, the m... |
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