Question

Nitrogen returns to the atmosphere through a process called(1 point)
Responses

nitrogen fixation.
nitrogen fixation.

denitrification.
denitrification.

nitrification.
nitrification.

nitrogen cycle.

Answer 1

denitrification.

Answer 2

Nitrogen from animal waste can be stored in bodies of water as(1 point)
Responses

ammonia.
ammonia.

nitrites.
nitrites.

nitrogen gas.
nitrogen gas.

nitrates.

Answer 3

nitrates.

Answer 4

Living organisms can incorporate ________ into their metabolism.(1 point)
Responses

nitrates
nitrates

nitrites
nitrites

nitrogen gas
nitrogen gas

ammonia

Answer 5

nitrates

Answer 6

Usable forms of nitrogen can intentionally be increased in the soil by(1 point)
Responses

allowing organic matter to decompose.
allowing organic matter to decompose.

lightning.
lightning.

planting fewer beans.
planting fewer beans.

planting more trees.

Answer 7

allowing organic matter to decompose.