EVERYDAY SCIENCE

Detailed explanation-1: -The maximum air pressure (weight of the atmosphere) is at sea level and decreases at high altitude because the atmosphere is in hydrostatic equilibrium, wherein the air pressure is equal to the weight of the air above a given point on the planetary surface.

Detailed explanation-2: -Atmospheric pressure changes at different altitudes. Pressure is greatest at sea level and decreases with height. Air is heaviest at sea level because the air molecules are compressed by the weight of the air above them.

Detailed explanation-3: -The inner core experiences the highest pressure.

Detailed explanation-4: -The troposphere has the following characteristics. It extends from the earth’s surface to an average of 12 km (7 miles). The pressure ranges from 1000 to 200 millibars (29.92 in. to 5.92 in.).

Detailed explanation-5: -The tropopause can exist anywhere between 70 hPa (≈18 km) and 400 hPa (≈6 km), and it is therefore not convenient to use a constant pressure level to describe the tropopause.