Question

Immersive Reader
The process of fermentation happens
A
whenever a plant receives direct sunlight.

B
when there is too much glucose for aerobic respiration.

C
whenever the muscles need more acid.

D
when there isn’t enough oxygen for aerobic respiration.

Answer 1

The correct answer is:

**D** when there isn’t enough oxygen for aerobic respiration.

Fermentation is an anaerobic process that occurs when oxygen is scarce, allowing organisms to convert sugars into energy.