Science 6th grade pls help Describe the pattern of air density changes within layers of the atmosphere.

Describe the pattern of air pressure changes within layers of the atmosphere.

What is the relationship between air density and air pressure?

Describe the pattern of temperature changes within layers of the atmosphere. Why do you think temperature changes follow this pattern?

mountains can affect the climate of nearby lands. in some areas, mountains block rain, so that one side of a mountain range may be rainy and the other side may be a desert. much of airborne moisture falls as rain on the windward side of mountains.

explanation:

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.