Explain why there is such a wide variation for the trait of skin tone in humans. Use two to three sentences

Answer 1

Skin tone in humans is determined by a combination of genetic factors such as the amount and type of melanin produced by the body, as well as environmental factors such as sun exposure. This variation in skin tone can be attributed to adaptations to different climates and levels of ultraviolet radiation, as well as intermixing among different populations over generations.