Nitrogen Cycle

The process of bacteria in the soil changing extra nitrates back into atmospheric nitrogen so that it can reenter the atmosphere & continue the cycle is known as _____.

• ammonification

• nitrification

• fixation

• denitrification

Tags

NGSS.MS-LS2-3

True or False...Bacteria play a very important role in the nitrogen cycle.

• True

• False

Tags

NGSS.MS-LS2-3

The process of plants absorbing usable nitrates from the soil with their roots is known as ____.

• nitrification

• assimilation

• fixation

• denitrification

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

True or False...Decomposers (like fungi & bacteria) are important in cycling nitrogen through the ecosystem.

• True

• False

Tags

NGSS.MS-LS2-3

The process of decomposers like fungi & bacteria breaking down dead organic matter & waste material and turning nitrogen into ammonia is known as ____.

• ammonification

• nitrification

• fixation

• denitrification

Tags

NGSS.MS-LS2-3

The process of bacteria changing ammonia to usable nitrates is known as _____.

• nitrification

• assimilation

• fixation

• denitrification

Tags

NGSS.MS-LS2-3

The process of bacteria in the soil changing atmospheric nitrogen to ammonia is known as ______.

• nitrification

• assimilation

• fixation

• denitrification

Tags

NGSS.MS-LS2-3

How do nitrates formed in the atmosphere during lightning fixation get to the soil?

• the sunlight

• precipitation

• assimilation

• fixation

True or False...The nitrogen in the atmosphere is in a usable form and can be absorbed by living things.

• True

• False

Tags

NGSS.MS-LS2-3

Which process in the nitrogen cycle involves the conversion of atmospheric nitrogen into a form usable by plants?

• Ammonification

• Nitrification

• Nitrogen Fixation

• Denitrification