Nitrogen returns to the atmosphere through a process called(1 point)
Responses
nitrification.
nitrification.
denitrification.
denitrification.
nitrogen fixation.
nitrogen fixation.
nitrogen cycle.
denitrification.
Nitrogen from animal waste can be stored in bodies of water as(1 point)
Responses
ammonia.
ammonia.
nitrites.
nitrites.
nitrogen gas.
nitrogen gas.
nitrates.
nitrates.
Living organisms can incorporate ________ into their metabolism.(1 point)
Responses
nitrites
nitrites
nitrates
nitrates
nitrogen gas
nitrogen gas
ammonia
nitrates
Usable forms of nitrogen can intentionally be increased in the soil by(1 point)
Responses
planting more trees.
planting more trees.
allowing organic matter to decompose.
allowing organic matter to decompose.
planting fewer beans.
planting fewer beans.
lightning.