Answers MO-Earth and Space Science A Cycles of MatterQuestion 1

1

AssignmentMultiple Choice

Cycles of Matter

Question 1 of 3 • MO-Earth and Space Science A

What is free nitrogen?

Answer

A

nitrogen that is ready for plants to use

B

nitrogen that has been fixed by bacteria

C

nitrogen that cannot be used by organisms

D

nitrogen that is returned to the soil by decomposers

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