Nitrogen Cycle Quiz

What are the two forms of nitrogen plants and animals can use?

• Nitrogen gas and Ammonia

• Ammonia and Nitrates

• Nitrates and Nitrogen Gas

• Nitrates and phosphates

What are the five steps of the nitrogen cycle?

• Denitrification

  Assimilation

  Nitrification

  Ammonification

  Nitrogen Fixation

• Nitrogen Fixation

  Nitrification

  Ammonia Fixation

  Assimilation

  Ammonification

• Declassification

  Assimilation

  Nitrification

  Ammonification

  Nitrogen Fixation

• Nitrogen Fixation

  Nitrification

  Denitification

  Assembly

  Ammonification

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

During Nitrogen Fixation, what helps transform nitrogen gas into ammonia that can be absorbed by the plants?

• Insects

• Roots

• Bacteria

• Soil

What do decomposers transform nitrogen-containing parts of the organic matter into?

• Ammonia

• Nitrates

• Nitrogen Gas

• Soil

Tags

NGSS.MS-LS2-3

During Nitrification why do bacteria transform ammonia into nitrates?

• So they can be released into the atmosphere.

• So the animals can eat them.

• So the plants can absorb them.

• So the soil can absorb them.

Tags

NGSS.MS-LS2-3

How do animals get nitrates?

• By drinking nitrate water.

• By eating the plants.

• By breathing them in the atmosphere.

• By walking in nitrate filled decaying organic matter.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

What is denitrification?

• When bacteria convert nitrates in the soil to nitrogen gas and it's released into the atmosphere.

• When plants die and decay, they release nitrogen gas into the atmosphere.

• When bacteria convert ammonia in the soil to nitrogen gas and it's released into the atmosphere.

• When plants die and decay, they release nitrates into the soil.

Tags

NGSS.MS-LS2-3

What are two ways humans negatively affect the nitrogen cycle?

• By cutting down forests and over plowing their land.

• By using fossil fuels and cutting down forests.

• By over watering our crops and using fertilizers.

• By over using fertilizers and burning fossil fuels.

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

What percent of nitrogen makes up our atmosphere?

• 68%

• 78%

• 87%

• 64%

Nitrogen is absorbed by the plants in the form of

• Ammonium

• Nitrites

• Nitrates

• All

Tags

NGSS.MS-LS2-3