Which factors were determined to directly cause the loss of skin pigmentation in humans as a result of natural selection?
(1 point)

1. a change in the diet of human populations as they settled in colder climates

2. the clothing worn by humans in the early 8th century

3.the interaction of human populations with predators in colder climates

4.the impact of UV radiation on folate and Vitamin D levels in human populations

The factors that were determined to directly cause the loss of skin pigmentation in humans as a result of natural selection are the impact of UV radiation on folate and Vitamin D levels in human populations.

Ultraviolet B radiation produces diet D in human skin. Ultraviolet radiation can, however, smash folate. Folate is critical for the speedy increase of cells, particularly at some point in which its deficiency can motivate neural tube defects. The human frame additionally has a mechanism to save you overproduction of vitamins.

What is UV radiation?

Ultraviolet is a shape of electromagnetic radiation with a wavelength from 10 nm to four hundred nm, shorter than that of seen light, but longer than X-rays. UV radiation is found in sunlight and constitutes approximately 10% of the whole electromagnetic radiation output from the Sun.

Thus it is learned that the above answers are well-explained factors that were determined to directly cause the loss of skin pigmentation in humans as a result of natural selection bout.

To learn more about natural selection refer to the link :

https://brainly.com/question/23929271