SOLAR SYSTEM

Detailed explanation-1: -As altitude rises, air pressure drops. In other words, if the indicated altitude is high, the air pressure is low.

Detailed explanation-2: -At various elevations of the atmosphere, the air is not the same. Near the earth, it is denser. As we ascend, it thins away. Because In the atmosphere, gravity holds most of the molecules close to the earth’s surface so air pressure drops quickly at first and then more slowly as height increases.

Detailed explanation-3: -c) The pressure decreases as we go higher up above the earth’s surface because the gravitational force acting on the air molecules at higher altitude is less. When the air mass is not strong enough to get pulled down by the gravity, the atmospheric pressure decreases.

Detailed explanation-4: -Back on Earth, as elevation increases, the number of molecules decreases and the density of air therefore is less, meaning a decrease in air pressure. In fact, while the atmosphere extends more than 15 miles (24 km) up, one half of the air molecules in the atmosphere are contained within the first 18, 000 feet (5.6 km).

Detailed explanation-5: -As altitude increases, the amount of gas molecules in the air decreases-the weight of a column of air over a particular height beyond sea level would be less than that of sea level. As a result, as height increases, the pressure due to the air column decreases.

Detailed explanation-6: -Pressure reduces with height because amount of air is getting less. It decreases as we go higher up an altitude.