What caused the himalayas to form?

Never mind alrwady found the answer im looking for

How do hearths affect cultural diffusion? a. a hearth is the destination of cultural diffusion. b. a hearth divides a cultural region in two. c. a hearth is the beginning point of cultural diffusion. d. a hearth is the means of cultural diffusion. e. a hearth is the meeting point of two diffuse cultures.

The statement: the atmosphere is studied because it insulates the earth from extreme temperature change is a.true b.false