Answer the following Questions Briefly:

What are the processes responsible for heating the atmosphere?

The energy reflected back towards the earth warms up the atmosphere causing the earth to emit more infrared radiation. This results in a cycle which keeps the atmosphere and warms. The gas carbon dioxide absorbs heat and keeps the atmosphere warm by the process of insulation and radiation. The heat of the sun which reaches on the earth is trapped by the sheet of carbon dioxide surrounding the surface of the earth and as a result of excessive CO₂, this whole process has resulted in the phenomenon of global warming which is fatal.