1.

The atmosphere exerts enormous pressure on us. But, we don’t feel it because (a) our blood exerts a pressure slightly more than that of the atmosphere. (b) we are used to it. (c) our bones are very strong and can withstand the pressure. (d) the surface area of our head is very small.

Answer»

(a) our blood exerts a pressure slightly more than that of the atmosphere.

We don’t feel the atmospheric pressure because our blood exerts a pressure slightly more than that of the atmosphere.



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