How does the atmospheric pressure vary as we go above the surface of Earth?
(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.
How does the surface tension of a liquid vary with an increase in temperature?
(a) Remains same (b) Decreases
(c) Increases (d) No regular pattern is followed