Solution of Chapter 8. Winds, Storms and Cyclones (NCERT Science Book)

Fill the missing word in the blank spaces in the following statements:

(a) Wind is _______ air.

(b) Winds are generated due to ________ heating on the earth.

(c) Near the earth's surface ________ air rises up whereas _________ air comes down.

(d) Air moves from the region of __________ pressure to a region of __________ pressure.

Suggest two methods to find out wind direction at a given place.

State two experiences that made you think that air exerts pressure (other than those given in the text).

You want to buy a house. Would you like to buy a house having windows but no ventilators? Explain your answers.

Explain why holes are made in hanging banners and hoardings.

How will you help your neighbours in case cyclone approaches your village/town?

What planning is required in advance to deal with the situation created by the cyclone?

Which one of the following place is unlikely to be affected by a cyclone?

(a) Chennai

(b) Mangaluru (Mangalore)

(c) Amritsar

(d) Puri

Correct

Which of the following statements given below is correct ?

(i) In winter the winds flow from the land to the ocean.

(ii) In summer the winds flow from the land towards the ocean.

(iii) A cyclone is formed by a very high speed pressure system with very high speed winds revolving around it.

(iv) The coastline of India is not vulnerable to cyclones.

Correct