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SAT® Subject Test in Biology

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Moderate

Nitrogen Gas

SATBIO-FEHW01

In the nitrogen cycle, various processes occur as nitrogen is converted into different compounds. Answer the following 5 questions by using the choices provided. Answers may be used once, more than once or not at all.

By which process do bacteria convert nitrogen compounds and release nitrogen gas into the atmosphere?

A

Denitrification

B

Ammonification

C

Decomposition

D

Nitrogen fixation

E

Nitrification