now, as you posted in Philosophy&Religion zone also:
it's because of all the tears due to all the pain on Earth ...
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From Where the earth gets all its water
How we got all these water on earth?
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Answers
All the elements on earth except hydrogen came from a star that exploded long ago.
The universe started out as mostly hydrogen and helium. When large stars burn up most of theyir hydrogen into helium, some of them are so large they can compress and fuse the helium into heavier elements. And when the helium is used up, then those heavier elements get fused into more heavier ones. Eventually the star can't fuse any more elements, about at the point where it's fusing things into iron. Then the whole shebang blows up, scattering the elements all over space.
The theory of this closely matches the quantities of elements we see on Earth.
Now water is made up of hydrogen and oxygen, two of the more common elements that get created in stars. It may seem like we have a lot of water, but it's actually a miniscule part of the earths mass. Much more of the oxygen is bound up in rocks than is in the air or water.
Few days back I had seen a program in National Geographic channel which shows that we got all of earth water as I told above but that didnt make sence to me as we have lot of water and its reallye need a big big quantity of Asteroids to hit the earth to fill that big amount water in our oceans
Thanks
http://www.bautforum.com/a
The earth is very round and flat.
If you made an accurate model of the earth the size of billiard ball, you couldn't feel Mt Everest.
And you would have a very hard time finding a thin enough paint to represent the oceans.
> why we have so much depth in the oceans i mean if we empty water of all earth then its kind a looks like the all our cotinents are just lying over the mountains
That's right. I don't exactly understand the question..
What is the alternative to a highly rocky planet? A very smooth one.
The Earth would have been smoother, had the gravitational force have been much stronger.
On Mars, the mountains are even larger than here on Earth, because the gravitational force on the surface is significantly less than that here.
> If water collects at the lowest points then why the ocean is so vast ?
..because there's a lot of water?
> The Almighty God made water and commanded them to stay wherever you find them
Wow, he can do all that, but he struggles to design an eye! Strange, huh.
By the way, you realise that by introducing a supernatural being*, you're no longer doing science?
And in fact, you haven't answered a single thing!
"<Insert a scientific question>"
"God did it"
"Oh. It's the detail that overwhelms me. And of course, it has numerous applications! AND is backed by mountains of evidence!"
Please keep your ghost stories, and fairy myths, to yourself. Infantile delusions have no place in science.
* effectively, an impossible character, who can be best described as 'the wet dream of human imagination'
I think one fact, which hasn't been mentioned is very important. It is not that the earth has got more water than the other planets, it is that the earth has retained it's water. It is more than likely that Mars had water and lost it, and that Venus did have water but it boiled off. The moons of the outer planets will probably also have little water.
The reason I suspect is that the earth has a magnetic field and this field shields off the solar wind, mostly high energy protons and electrons.
Water molecules are very light - in fact methane and water have the same molecular weight. Water is in fact a polymer - a chain of such molecules held together by weak covalent bonding. The sort of bonding which would allow a high energy particle to "chop-off" a H2O unit which migh have enough energy to escape the gravitational field. The earth's magnetic field stops the solar wind from simply "blowing-off" the lighter molecules.
Mars probably had a magnetic field when its core was molten. This allowed rivers and oceans to form. But in time the core cooled, the field disappeared and the lighter elements were blown off. It is interesting to note that the "red" planet is read because the surface consists of high oxidation state ferric compounds - ie: oxidized earth - caused by the solar wind.
H : being the simplest atom, hydrogen is thought to be the most popular one available in the universe.
O: Oxygen appears to be the one that is able to be present withing most formations, whether before or after some change, it can fairly easily live alone with itslef as O2 and even O3, and more - it lives well when combined with the more common Hydrogen, with your water as H2O or better said, as (OH) ability to be part of ionization and oxygenation etc
With the two being so readily available to us, it should be easy to see that where on earth their more stable form as water is what makes it a most prevalent molecule.
And since it is less dense than minerals, it is easier to notice than the minerals that lie beneath both the ground and the bodies of water.
On earth it also can be readily present in the three forms of solid, liquid, and gas.
25 March 2006: New comet could be source of Earth's water - astronomers find rare discovery in an asteroid-like object close to the Sun.
http://www.dailykos.com/st
Others have hypothesized that the water that Mars lost got picked up by the earth
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by: angelIIIPosted on 2008-05-16 at 05:01:03ID: 21581906
I would start here:
http://en.wikipedia.org/wi