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It has an atmosphere because if it didn't, all living things could die from the sun rays. Technically, the atmosphere is like a shield to a knight, it protects the knight from arrows, like the atmosphere protects the earth from deadly sun rays.
Actually the earth's atmosphere was kinda made on accident. It started because Volcanoes, and Comets blew/hit and released gases which reacted with eachother. Therefore causing the atmosphere
Wiki User
∙ 13y ago
Wiki User
∙ 7y agoThe Moon does not have enough gravity to form a thick atmosphere. Intense sunlight reaches and heats the surface. Liquid water would be ionized and escape back into space as hydrogen and oxygen ions.
The water on the Moon is in the form of ice in deep crater shadows. Sunlight cannot reach this ice to melt and vaporize it.
Wiki User
∙ 11y agoEarth has more mass, and therefore, more gravity. The Moon doesn't have enough gravity to hold a significant atmosphere for any significant amount of time.
The Earth is more massive, and so has more gravitational force to hold gasses.
Wiki User
∙ 12y agoAtmospheres on planets are a result of when a planet has a strong enough gravitational pull to be able to gather and contain smaller and lighter atoms (such as Hydrogen and Helium) towards the planet without them floating away. A big factor as to why the Earth was able to develop and maintain an atmosphere, is because of the distance between the Earth and the Sun.
The Earth was able to do this but it was so hot from the sun heating it up that most of the Hydrogen and Helium in its atmosphere floated away, but since the Earth had geographical land formations such as volcanoes, which released gases such as CO2, Ammonia, and Steam into the Earth's Atmosphere (which being heavier than Hydrogen and Helium they didn't float away) this allowed the Earth to develop a new atmosphere, composed of H2O, CO2, and Nitrogen. Under these conditions plants were able to develop and flourish by photosynthesizing due to having access to Sunlight, CO2, and H2O.
This resulted in the Earth having Oxygen within it's atmosphere and having the ability to harbor new organisms that require Oxygen to live such as animals.
Wiki User
∙ 10y agoThe Moon is smaller than Earth, and its gravity is quite a bit weaker. As a result, most gas molecules escape to space. (On Earth, the escape velocity is 11.2 km/second; on the Moon, the escape velocity is 2.38 km/second.)
Wiki User
∙ 13y agoProbably a mixture of volcanic eruptions and then plants starting to grow and then other animals soon after.
Wiki User
∙ 12y agoThe popular conjecture is that it does not; however, some scientists have expressed that it may be possible.
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What common earth substance is not found on the moon?
On the earth there is air. There is no air on the moonAir, liquid water (There actually is frozen water on the Moon), life, Almost everything.On Earth, you can find liquid water, a substantial atmosphere, and lifeforms.
What forms of water are found on earth or on the moon?
The vapor form, the liquid form, and the solid form are.
If there were oceans on the moon would they have tides?
No. The Moon doesn't rotate with respect to Earth; the same side of the Moon always faces the Earth. So even if there were oceans with liquid water, there wouldn't be rising and falling tides as we have here.
Are there air and water on both the moon and earth?
There is water on the moon but no atmosphere. The earth has water and air.
What are three ways Earth is different from the other inner planets?
We have a dense nitrogen/oxygen atmosphere. We have enormous amounts of free water, in solid liquid and gaseous forms. We have inhabitants living on our surface. Whether we have intelligent life is still open to debate.
Why does earth have a liquid water supply and the the moon does not?
because the moon does not contain enough gravity
Why does earth have q liquid water supply and the moon does not?
I think that the earth does have a water supply since it has oxygen and gravity. On the moon I think it doesn't have oxygen or gravity. I'm not sure. This answer was just a guess.
What resource is found on Earth but not on the Moon?
Liquid water
What common earth substance is not found on the moon?
On the earth there is air. There is no air on the moonAir, liquid water (There actually is frozen water on the Moon), life, Almost everything.On Earth, you can find liquid water, a substantial atmosphere, and lifeforms.
What resources is found on earth but not found on the moon?
Liquid water
Why does earth have a liquid water supply the moon does not?
The Moon does not have enough gravity to form a thick atmosphere. Intense sunlight reaches and heats the surface. Liquid water would be ionized and escape back into space as hydrogen and oxygen ions. The water on the Moon is in the form of ice in deep crater shadows. Sunlight cannot reach this ice to melt and vaporize it.
Why does earth have a liquid water supply and the does not?
The Moon does not have enough gravity to form a thick atmosphere. Intense sunlight reaches and heats the surface. Liquid water would be ionized and escape back into space as hydrogen and oxygen ions. The water on the Moon is in the form of ice in deep crater shadows. Sunlight cannot reach this ice to melt and vaporize it.
Where is the liquid water on the Moon?
There is no liquid water on the moon. There is some evidence that there is frozen water.
Why do earth have a liquid watter supply and the moon does not?
The Moon does not have enough gravity to form a thick atmosphere. Intense sunlight reaches and heats the surface. Liquid water would be ionized and escape back into space as hydrogen and oxygen ions. The water on the Moon is in the form of ice in deep crater shadows. Sunlight cannot reach this ice to melt and vaporize it.
What forms of water are found on earth or on the moon?
The vapor form, the liquid form, and the solid form are.
Why does liquid have a liquid water supply and the moon does not?
The Moon does not have enough gravity to form a thick atmosphere. Intense sunlight reaches and heats the surface. Liquid water would be ionized and escape back into space as hydrogen and oxygen ions. The water on the Moon is in the form of ice in deep crater shadows. Sunlight cannot reach this ice to melt and vaporize it.
Which planet has more water than earth?
There is no planet in the solar system which has more water than earth. Europa (a moon of the planet Jupiter) is thought to have a liquid ocean under a mantel of ice, but this moon is no larger than our own moon.
