Air pressure is caused by <u>the gravity of the earth. </u>
Explanation:
<u>Air pressure</u> is the force exerted by <u>air</u>; whether <u>compressed</u> or unconfined, on any surface in contact with it.
<u>Air pressure</u> is the <u>weight of particles</u> of gases as pressed down by<u> gravity </u>while mainting it's relative and variable equidistant matrix. Artificial pressure can be increased <u>by chamber and piston pumping action or reduce by vacuuming</u>.
Inherited traits include not only physical traits that can be seen, but also other traits, such as health, susceptibility to disease and addictions, behaviors, abilities, talents and intelligence.