Is race a valid way to understand modern human biological variability?

Aregion is an area of land that has common features. these features can be natural, such as climate or landscape. they can also be artificial, such as language or religion. the xinjiang uyghur autonomous region, above, is an area of china inhabited by uyghurs, a muslim group with ethnic ties to turkish people.

Iwould say d. eye contact and body language because you aren’t using any spoken communication. hope this : )

Developed countries will see a decrease in natural resources, because their population will decrease.