Explain why a person may bleed from the ...

Explain why a person may bleed from the nose when at a great height above the sea level.

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People are often advised not to carry fountain pens while travelling b...
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Why do some people have earache when they travel by an aeroplane ?
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Explain why a person may bleed from the nose when at a great height ab...
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How much pressure do we carry on our heads ? Why don't we feel it ?
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When a rubber sucker is pressed onto a flat glass surface, it sticks t...
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Describe a simple experiment to demonstrate atmospheric pressure.
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Explain the working of an ink dropper.
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Why is the opening of a dropper very narrow ?
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What is the characteristics of the cap of eye drop bottles ?
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Explain the working of a syringe used by children when they play with ...
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How does the doctor's syringe work ?
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Explain the origin of pressure due to a gas enclosed in a container.
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Define buoyant force.
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State the factors on which the buoyant force depends.
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A lemon sinks in a glass filled with water but it floats when we stir ...
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State Archimedes' principle.
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Write proper word in the blank space : According to Archimedes' prin...
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Using the formula for the magnitude of the buoyant force, state under ...
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Using the formula for the magnitude of the buoyant force, state under ...
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Using the formula for the magnitude of the buoyant force, state under ...
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