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How many years did it take to cool down enough for water to collect on the surface?
Wiki User
∙ 13y ago
Unfortunately, there is no evidence remaining of the exact time Earth existed as a planet before its surface cooled to the point rock solidified, let alone allowed liquid water to collect, as we rely on the dating of various rocks (which did not exist as such until the point they had cooled, quite some time after the accretion of material).
Wiki User
∙ 13y ago
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What did geologists know about the earth 200 years ago?
geology was born 200 years ago. by this time, geologists only knew about the things on the surface or things about the surface. They also knew that the earth was a sphere and that there were 7 land masses, and that the land masses were surrounded by water.
How does the earth recycle its water?
Earth recycles it's water by the Water Cylce. The Sun's heat heats the water causing it to evaporate in to water vapour. It also does this to plants and that is called transpiration. As the water vapour rises it cools down and forms clouds. The clouds are moved by prevaling winds. The clouds get denser and denser and eventually falls back down as rain. The rain either runs down on the Earth's surface that is called surface run - off. Or it soaks into the ground and becomes ground water. It takes 40,000 years for the earth to recycle its own water. Without human intervention.
How does the water stay on the Earth?
Because the earth's atmosphere creates consistent heat above freezing but bellow evaporating temperature, so the water doesn't freeze but is always effected by gravity. Comets and meteorites that impact earth also carry water. SOME water also melts when in direct sunlight (though not all if the planet/object does not have an atmosphere).
Why will the earth not run out of water?
Actually, the Earth will run out of water. In around 1 or 2 billion years from now, the sun will be hot enough to boil all of the Earth's oceans and all life on the Earth will be ceased during that time. The Earth will be scorched and discolored, and will become a lifeless planet.
Is changes in the earth's surface due to moving water is a rapid or slow process?
Slow. Erosion caused by water is a slow process, and usually takes hundreds of years. The Grand Canyon!
Is there water underground on Mars?
It is very likely that there is liquid water below the Martian surface. Water almost certainly flowed on the surface millions of years ago so there are likely reserves in the sub-surface.
Does California have enough water for the next 10 years?
probably not
What forces have shaped earth's surface over millions of years?
Wind and water, known as weathering and erosion, have shaped the surface of the Earth.
Why does the earth not absorb all the water from lakes and oceans?
The earth will one day absorb all of the water on its surface. The reason it does not absorb the water on its surface now is because the earth still possesses a hot magma and an even hotter core. Don't worry it will take 500 million years or more before the earths core cools enough to allow water to go into the depths of the crust without being forced back to the surface in the form of steam in volcano's and under water vents. The oceans recycle all of the water in themselves every 6 or 7 million years. This is accomplished thru hydro thermal means. Without the thermal side of the equation the water world be absorbed and disappear as it did on mars.
When did Mars lose its surface water?
Mars lost its water (or it all froze) fairly recently . . . about 1 million years ago.
Why does the earths surface look the way it does?
The Earth's surface looks the way it does because of the way the wind, water, and the tectonic plates move under the surface. They have shaped the surface into what it is today through millions of years of change.
How many millions of year ago did the first unicellular life appear?
Slightly more than 3000 million years ago, perhaps even as long as 3500 million years ago shortly after the earth's crust cooled just enough for bodies of liquid water to accumulate on its surface.
What fish eats the viper fish?
This species lives very deep in the ocean. Therefore, it goes up at night to collect food from the surface of the water. Sometimes, they're preyed upon by dolphins and sharks and other large predators, otherwise they're able to live for 40 years in healthy conditions.
Can a doctor collect a debt more than 2 years old?
yes..... a doctor can collect a debt for more than 2 years
Why does a cactus seed lie dormant for many years?
Cactsus seeds can lie dormant for many years so that they can survive until they have enough water to germinate and sprout. In the desert, many years may need to pass before enough water falls in the right season for cactus seeds to germinate.
Why is GPS data not enough to confirm that the earth's surface has been moving for many years?
Because GPS has not been available for that many years. GPS data IS enough to confirm that a point on the Earth's surface has moved since the GPS unit was installed there. Some very exciting work in seismology and vulcanology is being done exactly that way, right now.
How long ago did the earth cool enough for liquid water to form?
3 billion years ago
