Q21 of 27 Page 520

List three energy sources that are considered to be inexhaustible. State three reasons in support of your answer.

Solar energy: a renewable source of energy, the energy produced through nuclear fusion

Wind energy: wind is also a renewable source of energy, energy can also be backed up in storage cells


Energy from sea, tidal and wave energy.


More from this chapter

All 27 →
19

(a) Bio-mass contains stored energy. Justify it.

(b) How does bio-gas plant help to reduce the problem of pollution?

 20

What is meant by wind energy farm? Write one of its practical applications. Give any three limitations of using wind energy farm.

 22

Mention why is it not possible to make use of solar cells to meet all our energy needs? State three reasons to support your answer. Also, mention three uses of solar cells.

 23

(a) Which property of water in ocean enables it to act as a storehouse of solar energy?

(b) List three forms in which energy from ocean can be harnessed?


(c) How are they different from each other?