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प्रश्न
Nose bleeding may occur at a high altitude because
पर्याय
the atmospheric pressure decreases
the oxygen content of atmosphere decreases
the atmospheric pressure increasess
there are strong air currents at the high altitude
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उत्तर
the atmospheric pressure decreases
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संबंधित प्रश्न
When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is due to
State two advantages of an aneroid barometer over a simple barometer.
How does the atmospheric pressure change with altitude? Draw an approximate graph to show this variation.
Distinguish between the following:
Isobars and Isotherms
State briefly, how and why the atmospheric pressure of a place varies with the altitude. Draw an approximate graph to illustrate this variation.
Describe an experiment to demonstrate that air exerts pressure.
A low-pressure system is also called ______ and ______.
The small variations in pressure that exist largely determine the ______ and ______ patterns of the earth.
What is referred to as atmospheric pressure?
The increase in internal energy of 1 kg of water at 100°c when it is converted into steam at the same temperature and at 1 atmospheric pressure will be ______.
(density of steam is 0.6 kg m-3, latent heat of vaporisation of water = 2.25 × 106 J kg-1).
