When air is heated, it expands, becomes lighter and goes up.
II.
Three-fourth of the earth surface is covered by water.
III.
The low tides also help in fishing.
IV.
High tides help in navigation.
V.
Coins minted in Delhi, called dehliwal.
VI.
Raziyya is from the Rajput dynasty.
VII.
Kharaj was a tax on cultivation.
VIII.
Ibn Battuta, a fourteenth-century traveller was from Morocco, Africa.
IX.
Alauddin used a “token” currency, somewhat like present-day paper currency.
Answers
Answer:
#When air is heated it expands, becomes lighter and rises up: Cold air is dense, so, it sinks down. When hot air rises up, cold air from surrounding areas fills in the gap. This is the process of circulation of air.
1.BECAUSE WARM AIR RISES UP AND COOL AIR COMES DOWN THATS WHY AIRCONDITNER ARE FITTER UP AT WALL .
2. About three-fourth of the Earth's surface is covered with water, I.e., about 71% of the earth's surface has water in it.
3. BECAUSE FISHES COMES NEAR TO SEA SHORE.
4. High tides help in navigation. They raise the water level close to the shores. This helps the ships to arrive at harbour more easily. 2.The high tides also help in fishing. Many more fish come closer to the shore during the high tide. This enables fishermen to get plentiful catch.
Explanation: