Bacteria convert nitrogen gas from the atmosphere into nitrates which are usable by plants through a process called

Explanation:

The conversion of nitrogen gas into nitrates and nitrates through atmosphere, industrial and biological process is called nitrogen fixation. Atmospheric nitrogen must be processed, or 'fixed', into a usable form to be taken up by plant.

the aswer is letter c

the animal that would be cutest if scaled down to the size of a cat? elephant