Plants are autotrophs because *

Most autotrophs use the energy in sunlight to make food in a process called photosynthesis. Example: Plants, algae, and certain bacteria. My professor said that plants are autotrophs because they make their energy by sunlight. ... They convert energy from food into chemical energy called adenosine triphosphate, or ATP.

Explanation:

Photosynthesis

Explanation:

Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel.

~Hope this helps~