Question

differentiate between atmospheric pressure and jet stream

Answer 1

This temperature contrast extends from Earth's surface up to the polar-front jet stream altitude. ... When cold and warm air reside side by side, the higher the altitude the greater the pressure difference is between the cold and warm air at the same altitude.

Answer 2

Atmospheric Pressure

the pressure exerted by the weight of the atmosphere, which at sea level has a mean value of 101,325 pascals (roughly 14.6959 pounds per square inch).

Jet Stream

Jet streams are fast flowing, narrow, meandering air currents in the atmospheres of some planets, including Earth. On Earth, the main jet streams are located near the altitude of the tropopause and are westerly winds (flowing west to east).