Energy from various sources is considered to have been derived from the Sun. Do you agree ? Justify your answer.

Explanation

Sun is the ultimate source of energy. It is true that energy from various sources have been derived from the Sun. Following are explanations for this:
(i) Solar energy : The phenomenon of photo electric effect (generation of electricity by light) is possible only in the presence of Sun.
(ii) Wind energy : Wind energy arises due to uneven heating of the Earth.s surface by the Sun rays at two different adjoining places. Due to this, wind possesses kinetic energy.
(iii) Wave energy : Strong winds are generated due to the Sun and the waves are generated by strong winds blowing across the sea.
(iv) Ocean thermal energy: The Sun is responsible for the temperature difference between the water at the surface and water at depth in seas and oceans.
(v) Energy from fossil fuels : Fossil fuels (e.g., coal and petroleum) are formed when large plants and ancient creatures are buried deep inside the Earth.s crust under the effect of a lot of pressure and heat.
(vi) Biomass : Plants converts the solar energy into chemical energy with the help of inorganic substances (i.e., air and water). These plants are consumed by plants and animals and produce wastes from which energy is obtained.