Nitrogen Cycle Retake

Which of the following is not involved in the nitrogen cycle?

• A. Nitrogen fixation

• B. Nitrification

• C. Denitrification

• D. Photosynthesis

David, Anika, and Zoe are participating in a science quiz. The quizmaster asks, 'Which is the largest reservoir that contains about 78% of all N₂?'

• A. bacteria

• B. atmosphere

• C. plants

• D. soil

Tags

NGSS.MS-ESS2-1

Which is not a significant reservoir for nitrogen?

• A. rivers and streams

• B. plants

• C. bacteria

• D. atmosphere

Which describes biological fixation best?

• A. Ammonia is added to soils through fertilizer.

• B. Free-living bacteria combine N₂ with H₂.

• C. Nitrogen compounds dissolve in rain.

• D. Bacteria in swamps release N₂.

Tags

NGSS.MS-LS2-3

Thinking about the nitrogen cycle, list 4 of the processes that occur during the cycle.

Tags

NGSS.MS-LS2-3

Your classmate is confused. He understands the word "fix" to mean when a broken object is repaired. Describe to your classmate what nitrogen fixation means.

Tags

NGSS.MS-LS2-3

A company has cleared a forest for urban development. Explain how this could affect the carbon cycle. Use appropriate scientific terms in your response.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS1-6

Scarlett and Grace were studying about the nitrogen cycle in their biology class. They learned about a specific type of relationship between plant roots and bacteria. Liam, their classmate, forgot the name of this relationship. Can you help Liam remember what this relationship is called?

• symbiotic

• relational

• equal

• shared

Match the letter of each vocabulary term next to its matching definition.

• atmospheric fixation

• bacteria and fertilizers add this compound to the soil

• ammonification

• process where N₂ is broken apart by lightning, and nitrogen compounds fall with the rain

• assimilation

• bacteria in oxygen-poor environments create nitrogen gas

• nitrates (NO₃)

• process where N₂ in an orgnism's body is changed to NH₄ by decomposers

• denitrification

• when plants take in NH₄ and convert it to usable N₂

Tags

NGSS.MS-LS2-3