Why is photosynthesis a chemical reaction?
a because new substances are formed
b. because an input of energy is required
c. because the reactants are compounds
d. because the products include an element

A.

Explanation: A chemical reaction is a chemical change that occurs when two or more substances combine to form a new substance . Photosynthesis turns carbon dioxide and water into oxygen and carbohydrates, therefore a chemical change occurs.

i don't know people like to fight everywhere rip.

they all get energy from eating other animals, dead animals to be more precise.

hienas tends to steal pray from other animals. crows and vultures tend to eat dead animals and leftovers.

hope it ,

bioteacher101