The atmosphere exerts enormous pressure on us. But we do not feel it because
We do not feel uneasy even under the enormous pressure of atmosphere above as well as around us. Give a reason.
Statement 1: We can use water instead of mercury to construct a barometer for measuring the atmospheric pressure.
Statement 2: We do not use water in a barometer because it will be very inconvenient to use.
(a) What is meant by atmospheric pressure? What is the cause of atmospheric pressure?
(b) Why are our bodies not crushed by the large pressure exerted by the atmosphere?
(c) Explain why, atmospheric pressure decreases as we go higher up above the earth's surface.