C. Fill in the blanks with suitable words.
(a) Moving air is called___
(b) High speed winds can cause revolving
storms called_____
(c) The main cause of wind is_____in temperature between any two regions.
(d) Air____on heating
(e) Warm air is______than cold air.
(f) Airmoves from a region of____pressure to a region of
pressure.
(g) The centre of a cyclone is called its____
na
(h) A tornado is also called a____
Answers
Explanation:
a). Breeze.....
b). cyclone......
c). increase.......
d). rises up.....
e). lighter.. . .
f). high pressure to low pressure.......
g).eye.......
h). Twister.......
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Answer:
- wind
explain:-Wind is defined as the perceptible natural movement of the air, especially in the form of a current of air blowing from a particular direction whereas breeze is the gentle wind.
(b) reduced air pressure.
(c) uneven heating temperature.
explain:- Wind is Produced by the Uneven Heating Between Equator and Poles of Earth. The regions close to the equator of earth get the maximum heat from the sun, so the air in equatorial regions gets heated and becomes warm . The warm air rises in the equatorial regions of earth creating an area of low air pressure.
(d) expand.
(e) lighter
explain:-Hot air is lighter than cold air. The reason fr this is when air gets heated up it expands and becomes less dense than the air surrounding it also the distance between the molecules increases. So the less dense air floats in the much denser air just like ice floats on water as ice is less dense than water.
(f) air
explain:- You already know that when air moves, it is called wind. Air moves from the region where the air pressure is high to the region where the pressure is low. The greater the difference in pressure, the faster the air moves.
(g) tropical cyclone
explain:- A cyclone is a low-pressure area. A cyclone's center (often known in a mature tropical cyclone as the eye), is the area of lowest atmospheric pressure in the region.
(h) twister and cyclone
explain:-A tornado is a rapidly spinning column of air that extends from a thunderstorm cloud to the ground. ... Tornadoes are sometimes called "twisters" or "cyclones," although the term cyclone is also used to described hurricanes in the Indian Ocean. A tornado destroys nearly everything in its path.
Explanation:
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