Question

2)-Solar energy incident on earth each year is sufficient to meet the energy needs of the
world for the year as of today.
(A) True
(B)False

Answer 1

(A)True.
Solar energy is the most useful source of energy

Answer 2

Solution: Solar energy incident on earth each year is sufficient to meet the energy needs of the world for the year as of today. At a particular moment, sun emits somewhat 3.86 x 10^26 Watts of energy.

The energy level is so high that it can fulfil the energy requirements of the world. However, such energy is decreased when it reaches the earth’s surface.