The radiant energy received by the Earth from the sun is
A
Radiation
B
Insolation
C
Reflection
D
Refraction
Correct Answer: Insolation
The energy received by the earth is known as incoming solar radiation which in short is termed as insolation. As the earth is a geoid resembling a sphere, the sun's rays fall obliquely at the top of the atmosphere and the earth intercepts a very small portion of the sun's energy.