Why does the mercury column in the barometer fall rapidly before a severe storm? It is due to

A Increase in the humidity of air
B Fall in the atmospheric pressure
C Severe heat energy from the sun
D Rise in the atmospheric pressure

Correct Answer: Fall in the atmospheric pressure

The mercury column in the barometer fall rapidly before a severe storm, It is due to Fall in the atmospheric pressure. In general, a falling barometer indicates the approach of a storm. If the mercury is over 30.20 inches but falling quickly, warmer, cloudier weather is coming.

Related Questions

Mercury is often used in barometer because
A mercury barometer measures the __________ pressure.
A sudden fall in barometer reading indicates ____
Working principle of mercury in glass thermometer is based on the __________ of mercury with increase in temperature.

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