On such large scales, the mantle acts like a viscous fluid. The crust is made of lower density material than the mantle, so It rises to the top and sticks out of the water.
2007-09-11 14:49:55
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answer #1
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answered by Dr. R 7
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Only the ratio water/land is 1/3 land and 2/3 water on the surface of the earth crust. Below the surface it's mostly very rocky, and deeper in the earth, the rocks get so hot it melts and becomes magma.
But I've been reading articles that there are huge amounts of water inside the lower parts of the earth crust (the rocky mantle of the earth), maybe it could contain 10 times more water than the all the oceans together (though I couldn't find the article about some Japanese scientist claiming these huge amounts anymore). This could be an important factor in plate tectonics, as the water partially liquefies the rock, creating a gliding surface for the earth crust to move over.
http://news-info.wustl.edu/news/page/normal/8222.html
2007-09-11 09:32:17
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answer #2
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answered by Batfish 4
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The earth on the whole is a perfect solid... Only 2/3rd of its portion is covered with water on top....U do see land below the oceans,lakes etc etc...And if u ask how the water just stands out in space without falling out...Then the ans is Earth's gravitational force which holds the water back, allow us to use it and even walk on earth's surface...
2007-09-12 04:52:28
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answer #3
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answered by Saya Faatima 6
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Earth is solid, it has crust, in places there may be non but in some places it could be 50 miles thick (deep), there is land under the oceans. The water flows to the low levels from high level due to gravity. Under the crust it has pest like stuff and boiling lava or molten material that constantly moves like boiling water. With some solids in it, but towards the center it is all very hot liquid.
2/3of the earth sufase is covered with ocean, these are just like huge bowls, and they leak very little or non. The water accumulates in them. All water that is cycled naturaly or by human flows, thru the rivers, in to these bowls (the ocean and the lakes), some lakes over flow from time to time or constanly giving rise to creacks and rivers, which most of the time end up in the seas or the oceans.
Then there are very large lakes, and ponds.
2007-09-11 09:27:39
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answer #4
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answered by minootoo 7
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To answer this question we need to consider the formation of earth(seems odd).
When our earth was created,it was like a hot ball (similar to sun).But gradually the temperature lowered due to continuous rains for several million years.As a result of which a large portion of earth was covered with water(around 71%).But the remaining 29% remained uncovered because our earth is not perfectly flat.There are certain regions which are higher as compared to others.Therfore they remained uncovered and gave rise to what we call as continents.
2007-09-11 12:14:40
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answer #5
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answered by Nishant S 1
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it's a solid question. 2/3 of the earth surface is under water.
2007-09-11 14:12:57
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answer #6
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answered by Anonymous
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The whole of the Earth's crust is solid. The oceans fill the shallow parts of the surface, while the continents form the raised parts.
2007-09-14 04:39:03
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answer #7
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answered by Staara 3
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2/3rd of earth is not water; 2/3rd of earth is covered with water.
2007-09-11 13:21:08
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answer #8
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answered by Devarat 7
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2/3 of the Earth's SURFACE is water. The earth itself is all rock and iron, covered by water in places.
2007-09-11 09:28:46
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answer #9
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answered by ZikZak 6
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2/3rd of earth is not water, it is filled with water. earth's top layer is in solid phase, but due to uneven heights and rough surface, water from rain gets accumulated and fills the earth.
2007-09-14 02:32:19
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answer #10
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answered by Anonymous
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