By the Earth's gravity. This is why celestial bodies like the Moon and Mercury do not have atmospheres, they don't have enough gravity to hold onto the gases.
Updraft means the air around the earth.
The air moves around the earth as a result of pressure difference.
Air is retained on Earth due to Earth's gravity.
Yes - the further away from the Earth's surface you travel - the less gravity there is to hold air molecules around the planet. Eventually, the gravitational pull is so weak, that air molecules can simply 'drift off' into space. Fortunately - enough air is held around the Earth by gravity, to sustain life !
the air around the earth
The gravitational pull of the Earth's core.
The air was crisp, and i was the heir of the richest man in the world. Im the happiest man on the earth."As the heir to the thrown, you should not air your dirty laundry, for nobility must be held to a higher standard."
Weather is a mix of things that happen from day to day in the air around Earth.
The layer of air around the earth supports life and its called the atmosphere.
Cheese
Air that presses on the earth with force is atmospheric pressure. It is caused by changing in temperature and the natural movement of air around the Earth.
what air under water?????