How does ultraviolet radiation cause skin cancer?
a. the radiation damages a person’s dna, which causes a mutation that makes the cell divide out of control.
b. the radiation damages a person’s cytoplasm and this causes the normal cells to start dividing.
c. the radiation kills off a person’s normal, healthy cells and this creates space for cancer cells.

The correct answer is option A .

Explanation:

Ultraviolet radiation or UV radiation is a band of the electromagnetic spectrum of 10 nm to 400 nm wavelength present in sunlight. It is a known carcinogenic or cancer-causing agent.

Out of three only two UV radiation- UVA and UVB reach the earth surface and exposure to these rays could damage DNA and cause mutations to divide a cell in an uncontrolled manner.

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added

i think the answer is a.keratin is the pigment responsible for skin color.