Multiple choice general knowledge

Dark skin shields the body from the damaging effects of ultraviolet radiations. Therefore which of the following regions are inhabited by people with darker skin?

  1. Tropical regions

  2. Temperate regions

  3. desert regions

  4. forest regions

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dark skin contains higher melanin content, which provides protection against harmful ultraviolet (UV) radiation from the sun. Tropical regions near the equator receive the most intense and direct UV radiation throughout the year. People inhabiting these regions have evolved darker skin as an adaptive trait to shield against UV damage. Temperate, desert, and forest regions don't have the same consistent, intense UV exposure levels that would select for this adaptation.