What are any 3 differences betwwen atmospheric pressure and liquid pressure

Explanation:

Hydrostatic pressure is the pressure exerted by an incompressible fluid (a liquid) at a given point, due to the weight of the fluid above it.

Water is an incompressible fluid.

Liquid pressure's density is almost constant as the pressure changes.

Atmospheric pressure is the pressure exerted on a surface by the weight of the atmosphere (a compressible fluid) above it.

Air is a compressible fluid.

Atmospheric pressure's density changes with pressure.

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue