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Effects of atmospheric pressure:
1. Due to atmospheric pressure, the ink gets sucked up in the fountain pen
2. Nose bleeding is a common phenomenon. The atmospheric pressure is low at high altitudes. But the pressure inside the human body does not change. thus pressure inside the body is much higher than atmospheric pressure due to which the valves in the junction of nose and eyes burst.
3. Atmospheric pressure helps in drinking water with a straw.
4. Due to atmospheric pressure, the liquid rises in a syringe when the piston of the syringe is pulled up.
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