Question

Explain how harmfull chemical enter our body

Answer 1

The toxicity of a chemical refers to its ability to damage an organ system (kidneys, liver), disrupt a biochemical process (e.g., the blood-forming process) or disturb an enzyme system at some site remote from the site of contact. Toxicity is a property of each chemical that is determined by molecular structure.

Answer 2

by various routes like by oral or vector route