Case Study Questions for Class 10 Social Science Geography Chapter 5 Minerals and Energy Resources

Question 1:

Energy is required for all activities. It is needed to cook, to provide light and heat, to propel vehicles and to drive machinery in industries. Energy can be generated from fuel minerals like coal, petroleum, natural gas, uranium and from electricity. Energy resources can be classified as conventional and non-conventional sources. Conventional sources include: firewood, cattle dung cake, coal, petroleum, natural gas and electricity (both hydel and thermal).
Non-conventional sources include solar, wind, tidal, geothermal, biogas and atomic energy. Firewood and cattle dung cake are most common in rural India. According to one estimate more than 70 percent energy requirement in rural households is met by these two; continuation of these is increasingly becoming difficult due to decreasing forest area. Moreover, using dung cake too is being discouraged because it consumes most valuable manure which could be used in agriculture.

(i) Which of the following statement is true about conventional energy resources?
(a) They cause minimum pollution.
(b) They are available in limited quantity.
(c) Cattle dung is the most used energy in the world.
(d) There are sufficient reserves of conventional energy sources.

Ans. (b) Conventional energy resources are available in limited quantity.

(ii) Which of the following resources does not generate energy?
(a) Coal
(b) Fuel
(c) Natural gas
(d) None of the above

Ans. (d) All the given resources are used to generate energy.

(iii) Which of the following energy is non-conventional source of energy?
(a) Firewood
(b) Tidal energy
(c) Natural gas
(d) Petroleum

Ans. (b) Tidal energy is non-conventional source of energy.

(iv) Firewood and cattle dung cake are most common energy in rural India because
(a) they are easily available
(b) they are non-conventional
(c) they produces high energy
(d) None of the above

Ans. (a) Firewood and cattle dung cake are most common energy in rural India because they are easily available.

(v) How India can reduce its dependence over countries for energy?
(a) Promoting non-conventional source of energy
(b) Promoting efficient use of resources
(c) Both (a) and (b)
(d) None of the above

Ans. (c) India can reduce its dependence over countries for energy by promoting non-conventional sources of energy and efficient use of resources.

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