SOLAR SYSTEM

Detailed explanation-1: -The density increases as pressure increases. Altitude and weather systems can change the air’s pressure. As you go higher, the air’s pressure decreases from around 1, 000 millibars at sea level to 500 millibars at around 18, 000 feet. At 100, 000 feet above sea level the air’s pressure is only about 10 millibars.

Detailed explanation-2: -Air density and pressure decrease with increasing altitude.

Detailed explanation-3: -Air density is higher at lower altitudes. There is more space between air molecules at higher altitudes. There is less oxygen to breathe at the top of a high mountain than there is at sea level.

Detailed explanation-4: -Density and pressure/temperature As pressure increases, with temperature constant, density increases. Conversely when temperature increases, with pressure constant, density decreases.

Detailed explanation-5: -Therefore, air pressure decreases as we increase altitude. The air density depends on both the temperature and the pressure through the equation of state and also decreases with increasing altitude.

Detailed explanation-6: -The higher the altitude, the less dense the air. At airports in higher elevations, such as those in the western United States, high temperatures sometimes have such an effect on density altitude that safe operations are impossible.

Detailed explanation-7: -Air pressure and density work and change together as you enter different layers of the atmosphere. As the atmosphere expands the further you get from the Earth’s surface, it becomes less dense and air pressure decreases.