absorption of nitrogen by plants

the evaporation of water from the leaves of plants

rain or snow

the breakdown of limestone; returns CO2 to the water

CO2 enters plants during this process

process in which bacteria combine nitrogen with hydrogen to form

carbon-based materials made of decayed plants and animals

the burning of fossil fuels

rain or snow

carbon- based materials made of decayed plants and animals

a cycle in which a substance enters a living organism for a time then returns to the nonliving environment

absorption of nitrogen by plants

vaporized water forms clouds during this process

the burning of fossil fuels.

absorption of nitrogen by plants

the breakdown of limestone; returns CO2 to the water

vaporized water forms clouds during this process

the breakdow of limestone

rain or snow

carbon- based materials made of decayed plants and animals- used for fuel

the burning of the earth

the burning of fossil fuels

the burning of plants

the burning of animals

the breakdown of limestone; returns CO2 to the water

the breakdown of diamonds

absorption of nitrogen by plants

the burning of fossil fuels

bacteria convert nitrogen-based compounds into nitrogen gas

exhaling CO2 and returning it into the atmosphere

rain or snow

the evaporation of water from the leaves of plants

rain or snow

CO2 enters plants during this process

vaporized water forms clouds during this process

exhaling CO2 and returning it into the atmosphere

rain or snow

process in which bacteria combine nitrogen with hydrogen to form ammonia in the soil

the evaporation of water from the leaves of plants

a cycle in which a substance a living organism for a time then returns to the nonliving environment

vaporized water forms clouds during this process

absorption of nitrogen by plants

water coming out the ground

rain or snow