Question

which of the following is an example of a carcinogen?
water
ultraviolet (uv) radiation
oxygen
vitamins
what is metastasis?
the stage when dna is copied
when cancer cells spread to other parts of the body
the destruction of damaged cells
the growth of normal skin cells

Explanation:

Carcinogens are substances or agents that can cause cancer. Ultraviolet (UV) radiation is known to damage DNA in skin cells and is a well - known carcinogen. Metastasis is the process by which cancer cells break away from the original tumor and spread to other parts of the body through the bloodstream or lymphatic system.

Answer:

1. B. Ultraviolet (UV) radiation
2. B. When cancer cells spread to other parts of the body