Tag: pressure belts
Questions Related to pressure belts
Which of the following places is likely to get affected by a cyclone?
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Delhi
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Jaipur
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Amritsar
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Puri
Cyclone usually occurred to the place which are near to the coastal region. Since, Puri is the place among all the option which is situated at coastal region.
Equatorial low pressure belt is also called __________________.
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horse latitude
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doldrums
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roaring forties
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subtropical belt
Areas with low pressure have ________________.
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Bright weather
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Rain
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Dry weather
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Humidity
Areas with low pressure do not have much of the wind, a characteristic of the Equatorial low-pressure belts and the circumpolar high-pressure belts. Hence, they have a dry weather.
Trade wind are due to __________.
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conduction
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convection
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radiation
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scattering
Trade winds are result of combination of both convection of air currents and rotation of earth.
Due to warmer air at equator the process of convection takes place where heat is transferred to the lower heat areas from higher heat areas.
Thus warmer winds are moved towards the each pole respectively from equator and due to rotation of earth these winds fall back to the equator.
These winds blow nearly constantly and always in the same direction. The trade winds have been used for many centuries to decrease the transit time of ships traveling around the world.
Daily weather changes in the atmosphere are associated with ______.
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troposphere
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mesosphere
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inosphere
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stratosphere
The lowest layer of the earth that ranges up to 16 km thick is called troposphere. Most of the weather phenomenon takes place in this region. The troposphere is denser than the layers of the atmosphere above, as it contains up to 75% of the mass of the atmosphere.
Atmospheric pressure generated on the earth's surfaces is due to ________.
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gravitational force of earth
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Earth revolution
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Earth rotation
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none of these
Atmospheric pressure is the weight of atmosphere pushing down on itself.
Earth exerts gravitational force that tends to pull the gas molecules present in the atmosphere towards its center. This creates atmospheric pressure.
Atmospheric pressure is sometimes expressed in terms of the number of inches in a column of Mercury
Atmospheric pressure is measured with a barometer.
The velocity of winds is governed by ______________.
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temperature
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rotation of the Earth
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pressure gradient
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All the above
- Winds originate due to the pressure gradient i.e. winds travel from higher pressure region to the lower pressure region. The more the pressure gradient, the greater will be the wind speed and vice-versa. Hence option C is correct.
- Rotation of the earth may affect wind direction eg Ferrel's law, but they do not govern the wind speed.
Which pressure belts are called the horse latitudes?
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Equatorial Low Pressure Belt
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Sub-Tropical High Pressure Belt
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Sub-Polar Low Pressure Belt
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Polar High Pressure Belt
Sub-Tropical high pressure belt,
Which pressure belt is also known as the 'doldrums'?
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Equatorial low pressure belt
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Sub-Tropical high pressure belt
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Sub-Polar low pressure belt
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Polar high pressure belt
Equatorial trough of low pressure is the zone of convergence of trade winds blowing equatorward from the sub-tropical belts of high pressure in the northern and southern hemisphere. Within this belt the winds are light and variable with frequent calms. That is why this belt is also known as doldrums.
The sub-polar high pressure belts lies around poles between 80 90 N and S latitudes.
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True
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False
True,