Natural Satellite

Q. Give reasons:
Satellite launch vehicles are used to place satellites in their specific orbits.

Q. Which of the following vehicles are used by India to launch satellites in space?

1. GSLV
2. PSLV
3. GPS
4. IRNSS

Q. Match the following types of satellites to their applications.

1. Medium earth orbit
2. Studying polar regions
3. Meteorology
4. High earth orbit
5. Polar orbit
6. Military
7. Navigation
8. Low earth orbit

Q. List any four areas where solar cells are being used as a source of energy.
Or
Mention three advantages of a solar cell.

Q.

short notes on space research and development