Nitrogen returns to the atmosphere through a process called(1 point)
Responses
nitrification.
nitrification.
nitrogen cycle.
nitrogen cycle.
denitrification.
denitrification.
nitrogen fixation.
11 answers
denitrification.
Nitrogen from animal waste can be stored in bodies of water as(1 point)
Responses
ammonia.
ammonia.
nitrates.
nitrates.
nitrogen gas.
nitrogen gas.
nitrites.
Responses
ammonia.
ammonia.
nitrates.
nitrates.
nitrogen gas.
nitrogen gas.
nitrites.
nitrates.
Living organisms can incorporate ________ into their metabolism.(1 point)
Responses
nitrites
nitrites
nitrogen gas
nitrogen gas
nitrates
nitrates
ammonia
Responses
nitrites
nitrites
nitrogen gas
nitrogen gas
nitrates
nitrates
ammonia
ammonia
Usable forms of nitrogen can intentionally be increased in the soil by(1 point)
Responses
lightning.
lightning.
planting fewer beans.
planting fewer beans.
planting more trees.
planting more trees.
allowing organic matter to decompose.
Responses
lightning.
lightning.
planting fewer beans.
planting fewer beans.
planting more trees.
planting more trees.
allowing organic matter to decompose.
allowing organic matter to decompose.
Identify the first step in solving this equation for x : 7(x − 8) = 49 . (1 point)
Responses
Divide only the left side by 7.
Divide only the left side by 7.
Multiply both sides by 7.
Multiply both sides by 7.
Add 8 to both sides.
Add 8 to both sides.
Divide both sides by 7.
Responses
Divide only the left side by 7.
Divide only the left side by 7.
Multiply both sides by 7.
Multiply both sides by 7.
Add 8 to both sides.
Add 8 to both sides.
Divide both sides by 7.
Divide both sides by 7.
Identify the second step in solving this equation for y : −3(y + 6) = 21 . (1 point)
Responses
Divide both sides by 6.
Divide both sides by 6.
Divide both sides by −3
.
Divide both sides by negative 3.
Subtract 6 from both sides.
Subtract 6 from both sides.
Add 6 to both sides.
Responses
Divide both sides by 6.
Divide both sides by 6.
Divide both sides by −3
.
Divide both sides by negative 3.
Subtract 6 from both sides.
Subtract 6 from both sides.
Add 6 to both sides.
Divide both sides by -3.