Question

Plants use a process called photosynthesis to survive. What evidence proves this process is a chemical change?

Answer 1

Answer:

D

Explanation:

chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products.

Baicically a chemical reaction  is one that new substance. No energy or anything is newly made, that would violate the law of conservation of mass , but rather a new substance.