Because of the temperature, and our exposure to the sun has gave us a darker skin rather than the cold,
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ceem82
Areas that receive higher amounts of UVR, generally located closer to the equator, tend to have darker-skinned populations. Areas that are far from the tropics and closer to the poles have lower intensity of UVR, which is reflected in lighter-skinned populations.
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Answer:
Because of the temperature, and our exposure to the sun has gave us a darker skin rather than the cold,