3. Answer the following questions in about 120 words.
(1) Describe the distribution of coal in India.
(ii) Why do you think that solar energy has a bright future in India?
Answers
Answer:
1. In India coal occurs in rock series of two main geological ages, namely Gondwana, a little over 200 million years in age and in tertiary deposits which are only about 55 million years old.
(i)The major resources of Gondwana coal, which are metallurgical coal, are located in Damodar valley (West Bengal-Jharkhand). Jharia, Raniganj, Bokaro are important coalfields.
(ii)The Godavari, Mahanadi, Son and Wardha valleys also contain coal deposits.
(iii)Tertiary coals occur in the north eastern states of Meghalaya, Assam, Arunachal Pradesh and Nagaland.
2. Solar energy is an inexhaustible source of energy produced from sunlight. There is enough scope for the development of solar energy. It has bright future in India because
(a) Many parts (regions) of the country received sunlight on 300 days annually and so it becomes possible to generate 20 MW solar energy per square kilometer in such areas.
(b) It is easy to establish solar plants in urban and rural areas.
(c) By setting up solar plants in rural areas the dependence of people on firewood can be reduced,
(d) It is also becoming popular as it is used for cooking, heating water, lighting, etc.
(e) It is a renewable source of energy, while other conventional sources used for generating electricity are exhaustible and non-renewable.
Answer:
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