A researcher collects air samples from 90° North latitude and finds a persistent high- pressure system. The underlying process that explains this observation is:
Sinking of cold, dense air in polar regions
At 90° North latitude, the intense cold causes the air to become dense and sink towards the surface, creating a persistent region of high atmospheric pressure at the pole.
Hence, the sinking of cold, dense air in polar regions explains the observation.
If the surface area increases for the same thrust (force), then the pressure on the surface ______.
Deep-sea diving vessels have to withstand pressure from the crushing effect of seawater acting-
The pressure increases with-
The pressure exerted by man on the earth is minimum when he __________.
The atmospheric pressure at sea level is ________, and is taken as the normal atmospheric pressure.