Riverton : Biogeochemical Cycles

	In the nitrogen cycle the formation of ammonia compounds.
	The process by which materials necessary for organisms are circulated through the enviroment.
	The process by which carbon is cycle through the biosphere.
	The final process in the nitrogen cycle by which nitrogen gas is returned to the atmosphere.
	water found in the soil or underground formations of porous rock.
	The process in the nitrogen cycle by which nitrates and nitrites are produced.
	The process by which bacteria change gaseous nitrogen into usable compounds.
	Organisms responsible for nitrogen fixation
	Plants which contain nitrogen fixing bacteria in their roots.
	The bumps on the roots of legumes which contain nitrogen fixing bacteria.
	Types of legumes.
	Evaporation of water through the stomata of plants.
	The process by which autotrophs trap sunlight, carbon dioxide and water into glucose and oxygen.
	Site in an autotroph in which photosynthesis takes place.
	Site in the cell in which carboydrates and oxygen are converted into carbon dioxide and water. Energy released is then trapped into ATP.
	The two chemical process in which carbon, oxygen and water are cycled.
	Process by which fossil fuels and plants(trees) are burned producing carbon dioxide and water. Contributes to the greenhouse effect.
	The four main element necessary for life.
	The region on the surface of the earth, below the surface and above the surface in which organisms habitate (live).
	Process by which atmospheric water collects to form clouds. The is affected by temperature and pressure.
	Matter is cycled but___________ is not.