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www.reference.com/science/happens-air-pressure-altitude-increases-3bee9b0d705ee941

As altitude increases, the air pressure decreases. The surface of the earth is the bottom of an ocean of air. The layers on top increase pressure so that at sea level a body is under 14.7 pounds of pressure per square inch. Moving up in altitude decreases weight of air that causes the pressure. At 1

www.reference.com/science/air-pressure-change-altitude-e73c51ccc021fd53

Air pressure changes with altitude because of issues related to gravity. Molecules have more weight the closer they are to the Earth and more of them move to lower elevations as a result; this causes increased pressure because there are more molecules in number and proximity. Conversely, air at high

www.reference.com/science/altitude-affect-air-pressure-28863db43cfa0ce2

Altitude affects air pressure due to gravity. Gravity causes the pressure to increase or decrease based on the air's distance from sea level. Pressure decreases at higher altitudes.

www.reference.com/article/air-pressure-increase-altitude-9a25a7a6acf85fe4

Air pressure decreases with altitude. The combined weight of air molecules at increasing altitude decreases. Air pressure is greatest at the Earth's surface, because the surface air molecules bear the combined weight of all the air molecules above.

www.reference.com/article/point-drop-air-pressure-cause-altitude-sickness-c5cc151bfd420b02

Altitude sickness can occur following a drop in air pressure at altitudes above 8,000 feet. Altitude sickness usually only occurs when a person has not been gradually exposed or acclimatized to the low air pressure in advance, according to Medical News Today.

www.reference.com/article/happens-temperature-atmosphere-altitude-increases-702f7fe50b022cd4

Depending on the layer of the atmosphere, the temperature can either decrease or increase at rising altitudes. The five layers of the atmosphere, from lowest to highest, are the troposphere, the stratosphere, the mesosphere, the thermosphere and the exosphere.

www.reference.com/article/causes-air-pressure-8a0540f5a60a1ab5

Air pressure is caused by the weight of the air pressing down on the Earth, the ocean and the air below. Air pressure is also known as atmospheric pressure and barometric pressure.

www.reference.com/article/air-pressure-mean-57c67baf3df4c24a

Air pressure is the amount of pressure the weight of air exerts on a specific point. In terms of weather, air pressure is measured in millibars, hectopascals or inches of mercury. For items such as tires and other inflatable items, air pressure is measured in pounds per square inch.

www.reference.com/article/altitude-sickness-ac0b11d90ef338e2

Altitude sickness is the body's response to low oxygen levels at high altitudes, particularly when rapidly moving to altitudes above 8,000 feet, according to WebMD. Symptoms include headache, weakness, difficulty sleeping, nausea and dizziness.

www.reference.com/article/causes-differences-air-pressure-bc8b458e6475e876

Differences in temperature causing differences in air density lead to differences in air pressure. As the temperatures of portions of the atmosphere increase, the air in these portions expands and rises, causing low-pressure regions. Meanwhile, as the temperature decreases, the air contracts and sin