Select the correct statements about uses of air?

It makes windmills rotate.

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It helps in cooking.

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It helps in paragliding.

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It makes pinwheel spin.

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Solution

The correct options are
A It makes windmills rotate.
C It helps in paragliding.
D It makes pinwheel spin.
Moving air is called wind and since air has mass, moving air possess energy. This energy rotates windmills and spin pinwheel. It also helps in paragliding. Air does not help in cooking food.

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Question 3

What is not true about air?

a) It makes the windmill rotate.

b) It helps in the movements of airplanes.

c) Birds can fly due to the presence of air.

d) It has no role in the water cycle.

Windmills rotate with the help of:

Statement I:

Statement II:

Statement III:

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