Available Answers

1. 1.

   Fill in the blanks:

   1. Solar energy is generated from sunlight using __________________.
   2. Hydroelectricity is produced by building __________________ on rivers.
   3. Coal, petroleum and natural gas are also known as ____________________.
   4. ______________________ is the best quality coal, ideal for domestic use.
   5. ______________________ is a non-renewable source but a clean fuel.
2. 2.

   Match the following:

   Column A	Column B
   1. Sardar Sarovar Project	(a) Sutlej River
   2. The Muppandal Wind Farm	(b) Non-polluting fuel
   3. Coal	(c) Narmada River
   4. CNG	(d) Conventional Source of Energy
   5. Bhakra Nangal Project	(e) Tamil Nadu

    

3. 3.

   Distinguish between Conventional and Non-conventional Sources of Energy.

4. 4.

   Distinguish between Renewable and Non-renewable Resources.

5. 5.

   What is meant by energy? How are the sources of energy classified? Give an example of each.

6. 6.

   What is solar power? How is it used to obtain electricity?