Which energy source can be renewed in less than a week? a ton of coal
a barrel of oil
the charge on a solar battery cell
the ethanol produced by an acre of corn

a charge on a solar battery cell

A

Explanation:

I did this already and i'm am right.

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.