Question

c.
How much pressure do we carry on
our heads? Why don't we feel it?
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Answer 1

Answer:

The reason we can't feel it is that the air within our bodies (in our lungs and stomachs, for example) is exerting the same pressure outwards, so there's no pressure difference and no need for us to exert any effort.

Answer 2

Answer:

Its very light so we can't feel it

Explanation:

In water, the deeper we go, pressure increases there by 3× more by each meter.