Question

forensic______may be asked to study the source of heavy - metal pollution that poisoned the drinking water and sickened a whole city.
chemists
investigators
entomologists
botanists

Explanation:

• Forensic chemists study chemical substances and their effects. Heavy - metal pollution is a chemical issue.
• Forensic investigators are more about general crime scene investigation (not specifically chemical source study).
• Entomologists study insects.
• Botanists study plants.

Answer:

A. chemists