What is the difference between insolation and terrestrial radiation?

1.	What is the difference between insolation and terrestrial radiation?
Answer» The earth receives energy from the sun. The incoming solar radiation is called insolation. The sun’s rays reach the earth as short waves. They do not heat the atmosphere directly. Heat is transferred from the surface of the earth to the outer space in the form of long waves. This process is terrestrial radiation. The atmosphere is heated by this process.

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