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ocean water is made of hydrogen and oxygen & oxygen is more common than hydrogen on earth
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oxygen is the most common element found in the compounds that make up ocean water
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petroleum is a kind of fossil fuel & forming fossil fuels requires deposition and burial of decaying vegetation
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forming the fossil fuel petroleum requires deposition and burial of decaying vegetation
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forming the fossil fuel petroleum requires deposition and burial of decaying vegetation & vegetation is a part of the biosphere & fossil fuel is a part of the lithosphere
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the formation of petroleum cycles from biosphere to lithospehre
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soil is permeable & if something is permeable , then the water will flow through something easily
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water will flow through soil easily
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brown is a kind of color & color of the soil can be used to indicate the soil component & high humus content causes the soil to be brown
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if the soil has high humus content, then the soil will be brown in color
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earthworms create tunnels in soil & tunnels in soil loosen that soil
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earthworms can loosen the soil
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earthworms can loosen the soil & the looseness of soil increases the ability of water to enter the soil & the looseness of soil increases the amount of oxygen in that soil
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earthworms can help increase the amount of water and oxygen in the soil
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sand drains water quickly & if something drains water quickly , then that something will have little capacity to hold water
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sand has little capacity to hold water
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high humus content causes the soil to be brown & humus is a source of nutrients in soil
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soil with high nutrients content will be brown
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soil with high nutrients content will be brown & color of the soil can be used to indicate the soil component
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brown color can be used to indicate the soil is high in nutrients
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a plant requires nutrients to grow & soil contains nutrients for plants
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plants use the nutrients in soil to grow
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using resources decreases those resources & nutrients are a kind of resource
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using nutrients decreases those nutrients
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plants use the nutrients in soil to grow & using nutrients decreases those nutrients
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plants can decrese the nutrients in soil
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a rainforest is a kind of forest & a forest contains lots of plants / trees
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a rainforest contains lots of plants
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plants can decrese the nutrients in soil & a rainforest contains lots of plants
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the soil in a rainforest can be low in nutrients
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decomposition is when a decomposer recycles nutrients from dead organisms to the soil by eating those dead organisms & decomposition increases the amount of nutrients / nitrogen in the soil
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decomposers can increase the amount of nutrients in the soil
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decomposers can increase the amount of nutrients in the soil & an earthworm is a kind of decomposer & topsoil is a kind of soil
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earthworms can increase the amount of nutrients in the topsoil
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potassium is a kind of nutrient for plant growth & wildfire removes the nutrients in soil sometimes & nitrogen is a kind of nutrient for plant growth & phosphorus is a kind of nutrient for plant growth
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wildfire can remove the soil nutrients such as phosphorus, nitrogen, and potassium from soil
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wildfire can remove the soil nutrients such as phosphorus, nitrogen, and potassium from soil & if the nutrients in soil is removed , then the carrying capacity of soil for plant will be reduced
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wildfire can cause the carrying capacity of soil for plant to be reduced
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decaying plant is a kind of organic matter & organic matter is a source of nutrients in soil
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decaying plant is a source of nutrients in soil
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decaying plant is a source of nutrients in soil & fertile soil has a high number of nutrients
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decaying plant can make the soil fertile
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rain is a kind of precipitation & a storm is a source of precipitation
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a storm is a source of rain
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a storm is a source of rain & a thunderstorm is a kind of storm
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a thunderstorm is a source of rain
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a thunderstorm is a source of rain & cold fronts cause thunderstorms as they pass by
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cold fronts can cause thudnerstorms of rain as they pass by
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prevailing westerlies are prevailing winds from the west toward the east in the middle latitudes between 30 and 60 degrees latitude & united states are located in the middle latitudes between 30 and 60 degrees latitude
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prevailing westerlies are prevailing winds that move from west to east across the united states
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prevailing westerlies are prevailing winds that move from west to east across the united states & wind can make air masses to move in the same direction
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the prevailing westerlies move air masses from west to east across the united states
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the prevailing westerlies move air masses from west to east across the united states & jet streams may deflect the air masses moved by the prevailing westerlies
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the prevailing westerlies move air masses from west to east accross the united states but may be deflected by the jet streams
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a storm is a source of precipitation & snow is a kind of precipitation & rain is a kind of precipitation
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a storm is a source of rain / snow
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a storm is a source of rain / snow & a thunderstorm is a kind of storm
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a thunderstorm is a source of rain / snow
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a thunderstorm is a source of rain / snow & cold fronts cause thunderstorms as they pass by
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cold fronts will cause rain / snow as they pass by
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the ground radiates solar energy into air & solar energy can warm up the air
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the solar energy radiated by the ground can warm up air
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if gas is heated then that gas will rise & air is a kind of gas
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if air is heated then air will rise
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the solar energy radiated by the ground can warm up air & if air is heated then air will rise
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the solar energy radiated by the ground can cause the air to rise
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the solar energy radiated by the ground can cause the air to rise & travelling up a mountain side is a kind of rising
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the solar energy radiated by the ground can cause the air to travel up a mountain side
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the air mass over the ocean is warm & the air mass formed close to the ocean is humid in moisture
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the air mass over the ocean is warm and humid
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unstable air mass can cause a thunderstorm & warm and humid air masses are usually unstable
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warm and humid air masses can cause thunderstorms
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the air mass over the ocean is warm and humid & warm and humid air masses can cause thunderstorms
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the warm and humid air mass over the ocean can cause thunderstorms
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the warm and humid air mass over the ocean can cause thunderstorms & thunderstorms are a source of rainfall
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the warm and humid air mass over the ocean can cause rainfall
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mountains can cause the water in the air mass to condense & mountain is a kind of geographic obstacles
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mountain is the geographic obstacle that can cause the water in the air mass to condense
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a fly is a kind of insect & rolling in mud can be used to avoid insect bites by an animal & a moose is a kind of animal
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rolling in mud can be used to avoid fly bites by a moose
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rolling in mud can be used to avoid fly bites by a moose & rolling in mud is a learned behavior
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a moose rolling in mud to avoid fly bites is a kind of learned behavior
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snow is a kind of precipitation & grey clouds are a source of precipitation
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grey clouds can be a source of snow
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condensation causes clouds to form & if something causes a process then that something is required for that process
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condensation is required for clouds to form
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when warm air mass passes over cold air mass, the water vapor in the warm air mass will condense & a warm front is when warm air mass passes over a cold air mass
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a warm front will cause the water vapor to condense
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a warm front will cause the water vapor to condense & clouds are formed by water vapor condensing
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a warm front causes clouds to form
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a warm front causes clouds to form & cloudy means the presence of clouds in the sky
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a warm front causes the the sky to be cloudy
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a warm front causes clouds to form & clouds produce rain
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a warm front causes it to rain
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a warm front causes it to rain & if it is raining, then the weather will be rainy
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a warm front causes the weather to be rainy
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a warm front causes the the sky to be cloudy & a warm front causes the weather to be rainy
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a warm front causes cloudy and rainy weather
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clouds are formed by water vapor rising into colder regions of the atmosphere and condensing & water vapor is a kind of gas
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the condensation of water vapor causes cloud to form
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temperature is a measure of heat energy & condensing means a substance changes from a gas into a liquid by decreasing heat energy
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decreased temperature will cause a substance to condense from a gas to a liquid
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decreased temperature will cause a substance to condense from a gas to a liquid & water vapor is water in gas state & water droplets are water in liquid state
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decreased temperature will cause water vapor to condense to water droplets
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temperature is a property of weather & the properties of something are used for describing that something & sky conditions are a property of weather
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sky and temperature are used to describe weather
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the sun is the source of solar energy called sunlight & solar energy causes the weather patterns
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the sun causes the weather patterns
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erosion is when wind transports sediments & sand is a kind of sediment & deposition is when wind deposits sediments
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wind erosion and deposition can transport and deposit sand
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wind erosion and deposition can transport and deposit sand & sand dunes are formed by the wind transporting and depositing sand
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sand dunes are formed by wind erosion and deposition
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a landslide is when water / gravity rapidly moves rocks / soil downhill especially after a rain storm & erosion / storms can cause a landslide
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erosion causes rocks and soil to move downhill
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erosion causes rocks and soil to move downhill & a mountain is made of rocks / soil
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erosion can cause the rocks and soil on a mountain to move downhill
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erosion is when moving water transports sediments from one place to another place for a long distance & flowing water is a kind of moving water
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flowing water can cause erosion
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flood is the water that overflows the river bank & a riverbank is made of soil
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when it floods, water will overflow the soil on the river bank
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when it floods, water will overflow the soil on the river bank & a flood is a kind of moving water & soil erosion is when moving water moves soil from fields / environments
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a flood overflowing the riverbank will cause soil erosion
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sand dunes / arches are formed by the wind transporting and depositing sand & erosion is when wind transports sediments from one place to another place for a long distance
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wind erosion can form sand dunes and arches
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weather is a source of wind and water for weathering & sometimes weathering smooths / rounds rocks
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weathering by wind and water sometimes smooths rocks
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erosion is when wind / moving water transports sediments from one place to another place for a long distance & sand is a kind of sediment
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erosion can transport sand from one place to another place
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erosion can transport sand from one place to another place & new sand is brought from other places and spread on the beaches
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new sand is brought to the beach by erosion
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erosion usually occurs over a period of many years which is considered a long time & water causes soil and rock erosion
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water will cause erosion to the rock over a long period of time
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grass is a kind of plant & in the erosion process roots of plants are an inhibitor & the grasses are removed from the land
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the inhibitor of the erosion process is removed
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the inhibitor of the erosion process is removed & the grasses are removed from the land & removing an inhibitor of a process causes that process
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removal of grasses from the land will cause erosion
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wind and rain cause erosion & soil erosion is when wind and moving water moves soil from fields / environments
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wind and rain can cause soil erosion
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removal of grasses from the land will cause erosion & wind and rain can cause soil erosion
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removal of grasses from the land will cause wind and rain to erode the soil
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soil loss causes grooves in soil & soil erosion means soil loss through wind / water / animals
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soil erosion caused by water will cause grooves in soil
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soil erosion caused by water will cause grooves in soil & rainwater is a kind of water
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rainwater can cause grooves in soil
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rainwater can cause grooves in soil & a riverbank is made of soil
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rainwater can cause grooves in a riverbank
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rocks interacting with moving water over long periods of time causes weathering & sometimes weathering smooths rocks
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moving water interacting with rocks would smooth the rocks
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moving water interacting with rocks would smooth the rocks & waves are made of moving water
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waves interacting with rocks can smooth rocks
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waves interacting with rocks can smooth rocks & a pebble is a kind of small rock
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waves interacting with pebbles can smooth pebbles
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rain causes erosion & erosion decreases the amount of nutrients in soil
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rain can decrease the amount of nutrients in soil
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rain can decrease the amount of nutrients in soil & decreasing something can cause something to be removed
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nutrients in soil can be removed by rain
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nutrients in soil can be removed by rain & removing something is a kind of change & rain is a kind of natural process
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an example of a soil change caused by natural processes is nutrients in soil being removed by rain
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erosion sometimes decreases the amount of nutrients in soil & rain causes erosion
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rain can decrease the amount of nutrients in soil
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abrasion changes rocks from rough into smooth and round & abrasion is a kind of weathering
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abrasion is the kind of weathering that would change the rocks from rough into smooth and rough
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a mountain range contains mountains & a mountain is made of rocks
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a mountain range contains mountains made of rocks
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a mountain range contains mountains made of rocks & sometimes weathering rounds rocks
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weathering can round the rocks in the mountain range
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roots hold soil in place & if soil is held in place, then soil erosion can be prevented
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roots help prevent soil erosion by holding soil in place
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roots help prevent soil erosion by holding soil in place & removing trees will decrease the roots in the soil
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removing trees will increase soil erosion by decreasing the roots holding the soil in place
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when water freezes , that water expands & if there is a crack in a rock, then water can get into the crack
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if water freezes in the crack of the rock, then water will expand in the crack
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if water freezes in the crack of the rock, then water will expand in the crack & if water expands in a crack in a rock, then the rock will break apart
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if water freezes in the crack of the rock, then the rock will break apart by water expanding when it freezes
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soil is formed by weathering & weathering means breaking down rocks from a larger whole into smaller pieces
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soil is formed by breaking down rocks from a larger whole into smaller pieces
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scraping an object may cause small particles to break off of that object & a rock is a kind of object
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scraping a rock may cause small particles to break off the whole rock
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scraping a rock may cause small particles to break off the whole rock & glacier may scrape rocks when it moves
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glacier can scrape a rock and cause small particles to break off the whole rock
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very small rocks / minerals are kinds of of small particles & soil is made of very small rocks / minerals
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soil is made of small particles of rock / minerals
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glacier can scrape a rock and cause small particles to break off the whole rock & soil is made of small particles of rock / minerals
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the small particles of a rock scraped by the glacier can make up soil
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rocks interacting with wind and moving water over long periods of time causes weathering & weathering means breaking down rocks from a larger whole into smaller pieces by weather / mechanical means
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interacting with wind and moving water causes the rocks to be broken down from a larger whole into smaller pieces
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a boulder is a kind of rock & weathering means breaking down rocks from a larger whole into smaller pieces by mechanical means
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breaking down a boulder from a larger whole into smaller pieces is an example of weathering
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breaking down a boulder from a larger whole into smaller pieces is an example of weathering & a crack is formed by breaking the whole
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cracks will be formed by the weathering of a boulder
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cycles of freezing and thawing water cause ice wedging & ice wedging is a kind of mechanical weathering
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cycles of freezing and thawing water cause mechanical weathering
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cycles of freezing and thawing water cause mechanical weathering & mechanical weathering means breaking down rocks from a larger whole into smaller pieces by mechanical means
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rocks will be broken down from a larger whole into smaller pieces by cycles of freezing and thawing water
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cycles of freezing and thawing water cause ice wedging & ice wedging is a kind of mechanical weathering
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cycles of freezing and thawing water cause mechanical weathering
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cycles of freezing and thawing water cause mechanical weathering & mechanical weathering means breaking down rocks from a larger whole into smaller pieces by mechanical means
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cycles of freezing and thawing water will break down rocks from larger whole into smaller pieces
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ice wedging is a kind of mechanical weathering & cycles of freezing and thawing water cause ice wedging
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cycles of freezing and thawing water cause mechanical weathering
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