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Cycles

Across
In what form does carbon exist in the atmosphere? (written out)
The way plants and animals contribute carbon into the atmsophere
The process by which plants take in CO2 and turn it into sugars
The other form of nitrogen that plants and animals can use
Eat dead organisms and release the CO2 out of the bodies into the atmosphere
The process by which bacteria makes nitrogen available to plants
Down
Reduction of nitrate back into nitrogen gas
One of two forms of nitrogen that plants and animals can use