What is meant by atmospheric pressure?
(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.
What is the pressure measured relative to atmospheric pressure and which is less than atmospheric pressure?
What is meant by the statement 'the atmospheric pressure at a place is 76 cm of Hg'? State its value in Pa.