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Sea Breeze and Land Breeze

Fill in the b...

Question

Fill in the blanks with the correct words.

1. Wind is caused by .................... (actual/difference) in temperatures of different regions.
2. As air gets warmer, it .................... (contracts/expands).
3. Cool air is .................... (lighter/heavier) than warm air
4. Monsoon winds carry .................... (dust/rain)
5. Moving air can provide a .................... (gravity/lift).

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Solution

Difference.

Wind is caused due to different temperatures at different parts of the earth.

Expands.

Air expands as it gets warmer.

Heavier.

Cool air is heavier than warm air.

Rain

Monsoon winds are rain bearing winds.

Lift.

Moving air can provide a lift.

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Similar questions

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 __warm__ air rises up whereas _______ air comes down.

(d) Air moves from a region of __________pressure to a region of ________ pressure.

Q. Ventilators are provided near ceilings in the rooms of our houses because:
1. Hot air is lighter than cool air.
2. Hot air rises up and cool air settles down.
3. Hot air is heavier than cool air.

Q. Give reasons for the following.

(a) Cool air skins and warm air rises up.
(b) Moving air provides a lift.
(c) The front portion of a wind vane has a smaller surface area than its rear portion.

Q. Fill in the blanks with appropriate words: (dust, atmosphere, mixture, motion, dissolved, oxygen).

1. Air is not one substance but a ……………………..
2. When air is in ………………. it is called wind.
3. Our earth is surrounded by ………………………...
4. The aquatic animals use ………………. oxygen in the water for respiration.
5. Air contains ………………… particles.
6. The component of air that supports burning is called …………………

Q. (a) Fill in the blanks with appropriate words.
When air _______________(heats/cools), the air molecules _____________(spread out/come closer) so that there are fewer air molecules in the same space. _______________(Warm/Cool) air weighs less than _______________ (Warm/Cool) air, which means that warm air presses down on the earth less than cool air. Less pressing means _____________ (less/more) pressure. Thus, a mass of warm air creates an area of low pressure. Warm air rises and produces clouds. So, _______________ (low/high)pressure areas usually bring rain or storms.
(b) Now, explain how high pressure areas are associated with clear skies.

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