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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
What do you mean by atmospheric pressure?
Describe an experiment to demonstrate that air exerts pressure.
How is the barometric height of a simple barometer affected if Its tube is slightly tilted from vertical?
Mention two demerits of a simple barometer and state how they are removed in a Fortin barometer .
Draw a simple labelled diagram of a Fortin barometer and state how it is used to measure the atmospheric pressure.
How does the atmospheric pressure change with altitude? Draw an approximate graph to show this variation.
State two factors which affect the atmospheric pressure as we go up.
Draw a simple diagram of a Fortin's barometer and state how it is used to measure the atmospheric pressure.
Define one atmosphere.
What does low pressure and high pressure lead to?
