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Q: Why the earth retains its atmosphere?
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Is venus hotter or colder than earth?

Venus is hotter than Earth. Despite being farther away from the sun, the thick atmosphere of Venus traps heat, creating a runaway greenhouse effect that makes it the hottest planet in our solar system.


Why is the atmosphere?

The atmosphere provides us with Air and oxygen. It also burns up meteors in the mesosphere and it protects us from the suns harmful rays. It absorbs and spreads out the heat that the Earth retains from the sun, making a more uniform and less extreme environment. In short, the atmosphere is important because without it the Earth would not be able to support life.


Where did the term greenhouse come from?

Rather like a greenhouse (glasshouse) which retains heat allowing warmer conditions (for growing tomatoes in Canada), so the greenhouse effect retains heat in the atmosphere, allowing warmer conditions suitable for life on earth for many millions of years.


Can a really small planet have an atmosphere?

That depends on when you consider a planet to be "really small." Mars is much smaller than Earth, but it still retains an atmosphere. Mercury, the smallest planet in the solar system, does not have an atmosphere, but it is also very close to the sun, which would tend to drive away atmospheric gasses.


How can humans exist on earth and not on any other planet?

The atmosphere retains oxygen which humans need given off by plants and regulates the temperature at survivable levels during both day and night.


Are the five layers of the atmosphere in earth or out of earth?

The atmosphere is above the earth.


Earths position in the atmosphere?

Earth isn't in the atmosphere - the atmosphere is part of Earth.


What is the atmosphere of the earth like?

There is not much atmosphere on earth


Our atmosphere is attracted by earth's what?

our atmosphere is attacted by earth


What atmosphere is on earth?

The Region of the Earth's atmosphere is the Homosphere.


Does air affect Earth's atmosphere?

Air is Earth's atmosphere.


The mixture of gasses that surround the earth?

Atmosphere. It is a mixture of gasses that surrounds the earth.