Question

which is considered a chemical mutagen?
○ tanning beds
○ tobacco
○ x - rays
○ sunlight

Explanation:

Chemical mutagens are substances that can cause mutations in DNA. Tanning beds use UV light (physical mutagen), X - rays are ionizing radiation (physical mutagen), and the last unclear option is likely a physical agent. Tobacco contains chemicals like polycyclic aromatic hydrocarbons and nitrosamines that act as chemical mutagens.

Answer:

B. tobacco