Because of the many factors which affect atmospheric pressure. Pioneering scientists ... As air becomes less dense, it contains less gases per unit of volume, and therefore less oxygen.

The sun, however, heats the Earth’s surface unevenly, which creates different areas of low and high atmospheric pressure. When a high interacts with a low, wind occurs as air moves from the high ...

Air molecules colliding with a surface cause atmospheric pressure. Atmospheric pressure at sea level is about 101,000 Pa (101 kPa) but just 27,000 Pa (27 kPa) at the cruising altitude of a ...

The atmosphere exerts pressure on all objects in it. When a vibrating body moves in air, it creates slight disturbances of the AMBIENT atmospheric pressure. The AMPLITUDE of these pressure variations ...