Question

question 1/exposure to ultraviolet light that is found in sunlight causes skin to darken by stimulating the production of:
a oil
b sebum
c sweat
d melanin

Explanation:

Melanin is a pigment produced by melanocytes in the skin. When the skin is exposed to ultraviolet (UV) light, melanocytes are stimulated to produce more melanin. This increased melanin production is a protective mechanism of the body. Melanin absorbs UV radiation, preventing it from causing damage to the DNA in skin cells. Oil (sebum) is produced by sebaceous glands and is mainly involved in lubricating the skin and hair. Sweat is produced by sweat glands and is involved in thermoregulation and excretion of certain substances.

Answer:

D. melanin