Which phrase best describes the role of science in forming the Clean Water Act? reporting cost-effective ways to reduce pollution monitoring how many people suffer from cholera
releasing guidelines to enforce chlorine use at treatment plants
determining the need to create the Environmental Protection Agency

hey there!

so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

hope this

tobey

the correct answer is:

a population changes in response to a change in the environment.