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प्रश्न
What do the following indicate in a barometer regarding weather : sudden fall in the mercury level
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उत्तर
It indicates the coming of a storm or cyclone.
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संबंधित प्रश्न
Fill the missing word in the blank spaces in the following statements:
Air moves from a region of __________ pressure to a region of ________ pressure.
The atmospheric pressure on earth surface is nearly .............. .
Describe an experiment to demonstrate that air exerts pressure.
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A balloon collapses when air is removed from it.
Give two reasons for use of mercury as a barometric liquid.
Draw a simple labelled diagram of a Fortin barometer and state how it is used to measure the atmospheric pressure.
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The Westerlies in the Southern Hemisphere blow with greater force than those in the Northern Hemisphere.
State briefly, how and why the atmospheric pressure of a place varies with the altitude. Draw an approximate graph to illustrate this variation.
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