What is the rate of decrease of temperature per kilometer as we go up in troposphere.

What is the rate of decrease of temperature per kilometer as we go up in troposphere.

Which one of these also a changeable layer?

Which one of these also a changeable layer?

How do scientists forecast weather?

How do scientists forecast weather?

“Troposphere is called variable sphere”, why?

"Troposphere is called variable sphere", why?

What happens when troposphere is absent in the atmosphere.

What happens when troposphere is absent in the atmosphere.

Which layer of atmosphere is responsible for the change in weather?

Which layer of atmosphere is responsible for the change in weather? why?

Why is lower layer of troposphere hotter?

Why is lower layer of troposphere hotter? OR, 

As we go up in troposphere, temperature goes on decreasing , why?