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because those are the 2 planets closest to the sun

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14y ago

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What is the hydrosphere of mars?

The hydrosphere of Mars refers to all the water on or near the planet's surface, including liquid water, ice, and water vapor in the atmosphere. Currently, Mars has frozen water ice caps at its poles, as well as water ice and vapor in its thin atmosphere. There is evidence of ancient water flow on Mars, suggesting that liquid water was once present on its surface.


Why is there no liquid on the surface of Mars and Venus?

Because on Mars it is too cold so any water on the surface is frozen, while on Venus its too hot.


Which inner planet once had water on it?

The Rover mission confirmed that Mars once had liquid water on its surface.


What does earth have that mars and Venus doesnt?

Earth has abundant liquid water on its surface, a protective magnetic field, and a thick atmosphere that creates stable temperatures suitable for life. Mars lacks a significant atmosphere and water in liquid form, while Venus has a thick toxic atmosphere with extremely high temperatures.


Why does earth a liquid water supply an Venus does not?

Venus is closer to the sun, so it's hotter there. Water needs to stay below 100 deg C to remain a liquid, and Venus is hotter than that.


Is there life on venus mars and mercury?

No. They are two hot because they are too close to the sun and don't contain water, frozen or liquid.


Did Venus once have running water?

There is no known evidence of liquid water every having existed on Venus, but it is quite possible that surface conditions were once very different from what they are now. Note that the surface of Venus has not been studied as extensivley as the surface of Mars.


How much of Mars has water?

Mars has no liquid surface water.


Does the water on Mars flow slowly?

There is no liquid water on Mars.


Which planets have 70 percent covered with water?

Earth.The Earth is about 70% covered with water. We can't be too sure about other planets, although Mars and Mercury are certainly dry, and Venus is too hot for water to remain liquid.


Where might water exist as liquid on Mars?

There is no liquid water now on Mars. There may have been, in the past. Also, there is ice on Mars.


Is there presence of liquid water on Mars?

They had found ice on mars but no sign of a liquid