Answer:
Too much UV radiation from the sun or sunbeds can damage the genetic material (the DNA) in your skin cells. If enough DNA damage builds up over time, it can cause cells to start growing out of control, which can lead to skin cancer. Melanin protects skin from the sun's ultraviolet rays, which can burn the skin, and over time, could reduce its elasticity and cause a person to age prematurely. Suntanning occurs because exposure to sunlight causes the skin to produce more melanin and to darken.May
Explanation:
(Brainliest plz?)
Well the effect that the sun has on the skin to cause cancer is UV radiation,and in that process the sun damages genetic matter in your skin cells (DNA).And with that happening your cells (DNA) begin to (overgrow) in size and causes skin cancer.
