Question

winds which blow in a belt lying between 5°N to 30°N​

Answer 1

Answer:

Air is a mixture of several gases present in the atmosphere. The weight exerted by air on a unit area of

the Earth is known as air pressure. It is expressed in millibar.

 Atmospheric pressure produces changes in the weather.

 Winds are caused by air pressure.

 On maps, isobar lines join all places with the same air pressure at a given point of time. If the isobars

are far apart, then the weather is calm and gentle. Closed spaced isobars denote great difference in

air pressure and warm weather.

 Air pressure is measured by a barometer. There are two types of barometers—Fortin’s barometer and

aneroid barometer.

 The rate of change of atmospheric pressure between two points on the Earth’s surface is known as

the pressure gradient. The pressure gradient is denoted by the spacing of isobars on weather charts.

 Close spacing of isobars indicates a strong pressure gradient, while wide spaced isobars point out a

weak gradient