Which pressure belt is also known as the 'doldrums'?
A
Equatorial low pressure belt
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B
Sub-Tropical high pressure belt
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C
Sub-Polar low pressure belt
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D
Polar high pressure belt
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Solution
The correct option is B Equatorial low 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.