Question

what is the main purpose of cellular respiration?
to make sunlight
to store water
to release energy from food
to make sugar

Explanation:

Cellular respiration is a process that breaks down glucose and other organic molecules in the presence of oxygen to produce ATP, the energy - currency of the cell. It releases energy from food. Making sunlight is related to photosynthesis, storing water is not the main function of cellular respiration, and making sugar is also related to photosynthesis.

Answer:

To release energy from food