Nitrogen Cycle Practice Quiz [7th Grade]

Nitrogen fix bacteria and convert it into nitrogen gas so plants can be able to _____________________________

• decompose bacteria

• consume bacteria

• use the ammonia and nitrate

• none of the above

Tags

NGSS.MS-LS2-1

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Where is most of the nitrogen cycle occurring?

• the water

• in soil

• in the air

• in grass

Tags

NGSS.MS-LS2-3

How much percent does Nitrogen constitute in the air?

• 60%

• 27%

• 43%

• 78%

True or False? An atmospheric nitrogen cannot be used directly by plants or animals.

• True

• False

What is the process of Nitrogen getting converted into nitrogenous compounds called?

• Nitrogen fixation

• Nitrogen transfer

• Protein Synthesis

• Decomposition

What does Rhizobium bacteria do?

• Make protein photosynthesis

• Turns ammonia into nitrogen

• Turns nitrogen into ammonia

• All of the above

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NGSS.MS-LS2-1

True or False? Dead plants and animals excreta do not contain nitrogenous waste.

• True

• False

True or False? Nitrogen is the most plentiful gas in the atmosphere.

• True

• False

This can transform nitrogen in the atmosphere into a usable form of nitrogen

• rain

• ice

• lighting

• all of the above

Denitrifying bacteria __________

• are not apart of the nitrogen cycle

• change nitrogen gas into nitrate

• release oxygen gas into the atmosphere

• change nitrate back into nitrogen gas

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2