Question

Why lower layers of atmosphere has more density than the upper layers?​

Answer 1

Answer:

" The warm air near the surface rises and cool air higher in the troposphere sinks. So air in the troposphere does a lot of mixing. This mixing causes the temperature gradient to vary with time and place. ... The cold ground cools the air that sits above it, making this low layer of air denser than the air above it.

Answer 2

Answer:

The warm air near the surface rises and cool air higher in the troposphere sinks. So air in the troposphere does a lot of mixing. This mixing causes the temperature gradient to vary with time and place. ... The cold ground cools the air that sits above it, making this low layer of air denser than the air above it.