The biggest biomass of energy on Earth's surface is
(a) Biomass
(b) Solar radiations
(c) Tides
(d) Winds

What is biomass energy ?

The solar constant at earth's surface is

A metal surface is exposed to solar radiations. Which of the following is true?

Nearly 30% of the solar radiations return back to the space without contributing anything to the earth's surface temperature. This amount of radiation is known as

The average amount of energy received on a surface perpendicular to incoming radiation at the top of the atmosphere is called (1) Solar radiation (2) Electromagnetic spectrum (3) Solar constant (4) Electromagnetic constant