Question

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

Explanation:

• Tanning beds emit ultraviolet (UV) radiation, which is a physical mutagen.
• Tobacco contains various chemical compounds (like polycyclic aromatic hydrocarbons, nitrosamines) that can cause mutations in DNA, so it is a chemical mutagen.
• X - rays are a form of ionizing radiation, a physical mutagen.
• Sunlight (specifically UV rays in sunlight) is a physical mutagen.

Answer:

tobacco