Available Answers

1. 1.

   

   1. Study the graph and find out when the use of renewable energy was the minimum.
   2. Find out the year when the renewable energy was utilised the maximum.
   3. Why is there a gradual increase in the renewable energy consumption in the world? Discuss.
2. 2.

   Find out the major sectors where CNG and LPG are used.

3. 3.

   Answer the following in one or two words.

   1. Any one energy resource that cannot be sustained in the future
   2. Two examples of energy resources that are abundant and unlimited
   3. The unities that collectively make up a solar panel
   4. The type of coal that has the highest carbon content
   5. The type oldest coalfield of india
   6. Two oil-producing countries of the Middle East
   7. The oldest oilfield in India and the state where it is located
   8. One alternative clean fuel for transport
4. 4.

   Match the following columns.

   a. Neyveli	i. Middle East
   b. Bassein	ii. Largest coalfield
   c. Iraq	iii. Jog Falls
   d. Ankleshwar	iv. Used for producing coke
   e. Raniganj	v. Hirakud
   f. Bituminous	vi. Offshore oil field
   g. Karnataka	vii. Sutlej
   h. Punjab	viii. Thermal electricity
   i. Odisha	ix. Nagarjune Sagar dam
   j. River Krishna	x. Gujarat

    

5. 5.

   Snow-fed rivers are better harnessed for hydroelectric power generation. Give reasons.

6. 6.

   The initial cost of hydroelectric power generation is very high. Give reasons.