Nitrogen Cycle

What converts nitrogen gas into a usable form for plants and animals?

• bacteria

• rain

• fungi

• car exhaust

Tags

NGSS.MS-LS2-3

How do animals get the nitrogen they need?

• From the air they breathe

• From the water they drink

• From the food they eat

• From the sun

Tags

NGSS.5-LS2-1

What process occurs when dead plant and animal matter decomposes and nitrogen is released back into the atmosphere?

• Assimilation

• Fixation

• Ammonification

• Denitrification

Tags

NGSS.5-LS2-1

A correct path that nitrogen could take would be

• air -> animals -> plants -> bacteria

• animals -> air -> bacteria -> plants

• bacteria -> air -> plants -> animals

• air -> bacteria -> plants -> animals

Tags

NGSS.5-LS2-1

How much of the atmosphere is composed of nitrogen gas?

• 87%
• 38%
• 78%
• 21%

Tags

NGSS.MS-PS1-1

Organisms that break down dead plants & animals and release nitrogen back into atmosphere...

• bacteria
• plants
• animals
• producers

Tags

NGSS.5-LS2-1

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

• rain

• ice

• lightning

• sun

Burning fossil fuels releases this into the air

• nitrous oxide

• nitrate

• nitrogen gas (N2)

• methane

Organisms require nitrogen to make which of the following?

• glucose and starch

• lipids and nucleic acids

• proteins and nucleic acids

• carbohydrates and proteins

Tags

NGSS.HS-LS1-6

When fertilizer runs off of fields into streams it causes algae blooms that eventually lead to dead zones or areas that lack oxygen. The nutrients that are found in fertilizer that cause this situation called eutrophication are

• carbon and nitrogen

• nitrogen and phosphorus

• phosphorus and sulfur

• carbon and phosphorus

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4