Where does chemical digestion start in the body?

In the mouth.

Explanation:

The mouth contains salivary glands that secrete enzymes like amylases that digest Carbohydrates in food.

4

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this