Fill in the blanks.
1. ........... is the great circle at the centre of the earth.
2. The 0° longitude is called .......... meridian.
3. The highest mountain in the world is ..........
4. ......... is the highest peak in the world.
5. ......... is the highest peak in the Nilgiri ranges.
6. The instrument used to measure the direction of wind is ........
7. ........... energy is a form of renewable energy.
8. A generator can convert mechanical energy into ...........
8. The word monsoon is derived from the Arabic term.
9. ...........blows from sea to land during the evening.
9. .......... blows from land to sea in the morning.
