Question

4. Mention three damaging effects and three safety measures against cyclones.
5. Illustrate an example to show that high speed wind reduces air pressure.
3.
C. LONG ANSWER TY
1. How are wind currents generated ?
2. How are thunderstorms formed ?
3. What is cyclone ? How are cyclones formed ?
4.
5. I
HIGI
1.
2. I
O ANSWER​

Answer 1

Answer:

Explanation:

4) Dangers effect are:-

1)loss of life and property.

2)Damage of building and shelters.

3)Damage of cops and goods.

safety :-  

1)Avoid the high building area.

2)Be educated about cyclones.

3) Watch whether reports.

5)take two balloons of approximately same size and put little water into them, to make them heavy. inflate each of the balloons and suspend them from some fixed support such as rod.so the balloons are 10 cm apart from each other. now take a cardboard sheet and roll it like a tube, holding the tube close to the gap between two balloons blow hard. we observe the freely suspended balloons move together.

Reason: when high speed air moves through the gap in between the balloons the pressure of air falls in the gap. thus the air at the higher pressure on the side of balloon forces them inward

1)Cooler air from the surrounding areass of the equator comes towards the equator to fill the place of warm air which rises up due to sun's heating. Hence, wind currents are generated due to uneven heating.

2)When warm, moist air moves upward in an updraft, puffy cumulus clouds may form in the atmosphere. The moisture in the air condenses into water droplets as it rises. The cloud will continue to grow as long as warm air from below

3)To form a cyclone, warm, moist air over the ocean rises upward from near the surface. As this air moves up and away from the ocean surface, it leaves is less air near the surface. So basically as the warm air rises, it causes an area of lower air pressure below.

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