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cycles of nature

water cycle model describing how water moves from earth's surface to the atmosphere and back to the surface again through evaporation condensation and precipitation.
evaporation the process that takes place when a liquid changes to a gas.
condensation the process that takes place when a gas changes to a liquid.
nitrogen cycle model describing how nitrogen moves from the atmosphere to the soil to living organisms and then back to the atmosphere.
nitrogen fixation process which some types of bacteria in the soil change nitrogen gas into a form of nitrogen that plants use.
carbon cycle model describing how carbon molecules move between the living and nonliving world.
why do plants and animals and other organism require nitrogen nitrogen helps plants and animals and other organism build cells.
Created by: ammeewing