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The air surrounding Earth is our atmosphere.
The atmosphere is bound to Earth by gravity.
Dry air contains (by volume) 78% nitrogen, 20.95% oxygen, .9% argon, 0.04% carbon dioxide, and other gasses in small amounts. Water vapor can vary, displacing these, and is typically 1% but can be several percent.
Also:
The pressure at the surface of the Earth is 14.7 pounds per square inch or one atmosphere or one pascal or 760 millimeters of Mercury.
That pressure is the weight per unit area of all the air that is being pulled down by the attraction of the Earth's gravity.
Very light gasses, like hydrogen and helium, do escape from the atmosphere, but the remainder are pretty stable.
Sometimes a molecule the Earth's atmosphere is hit by a cosmic ray or a particle from the solar wind from the Sun and this can cause the molecule to move off into space. Mostly the Earth's magnetic field prevents charged particles in the solar wind from having great effect on the atmosphere, but that is not 100% protection.
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∙ 11y ago
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What makes up close to one fourth of the air surrounding the earth?
Oxygen makes up 20.95% of the air surrounding Earth (that is almost 25%).
What sphere is a layer of gasses surrounding the earth?
The gaseous envelope surrounding the earth is called the atmosphere. It can also refer to the air or climate in a particular region.
What is The total mass of air surrounding the Earth from the uppermost thermosphere down to the troposphere?
The atmosphere
Where does the energy come from to melt ice?
Usually from the surrounding air, meaning that while the ice melts, the surrounding air will cool down. Or water, if the ice is in water.Usually from the surrounding air, meaning that while the ice melts, the surrounding air will cool down. Or water, if the ice is in water.Usually from the surrounding air, meaning that while the ice melts, the surrounding air will cool down. Or water, if the ice is in water.Usually from the surrounding air, meaning that while the ice melts, the surrounding air will cool down. Or water, if the ice is in water.
What is the weight of the air pushing down on the earth?
It is called air pressure
What is the air surrounding a planet?
The air surrounding a planet is called the "Atmosphere."
What makes up close to one fourth of the air surrounding the earth?
Oxygen makes up 20.95% of the air surrounding Earth (that is almost 25%).
What is the blanket of air or gases surrounding the earth?
The atmosphere
What is an atmosphere in science terms?
The blanket of air surrounding the earth.
The what is the air surrounding the earth or another planet?
field or atmosphere
What sphere is a layer of gasses surrounding the earth?
The gaseous envelope surrounding the earth is called the atmosphere. It can also refer to the air or climate in a particular region.
Three letter word the invisible mixture of gases surrounding the earth?
air
What is the air on earth called?
Air
Dictionary meaning of atmosphere?
Multiple meanings, including: - Air surrounding the earth - Aura
What is The total mass of air surrounding the Earth from the uppermost thermosphere down to the troposphere?
The atmosphere
How does the sun heat the air surrounding earth?
because its really hot it uses its heat
How is air descirbed?
The invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen :)
