how did all this water get on earth?

Question

please no bullsh*t god or bible answers.

Answer 1

Comets are large conglomerations of icy materials that are born in the cloud that is beyond the orbit of Pluto. this ring of icy dust has been collected by the Solar System's passage through space.

Other conglomerations that fall into the inner system are also composed of icy dust, but their mass and density is too low to create the comets we see from Earth. Some have been seen impacting the upper atmosphere by the Visible Imaging System (VIS) on NASA’s Polar spacecraft in ultraviolet light,

There has been an argument about what they are.. I believe that clouds of icy material has fallen onto the Earth's atmosphere.

The point is, that if a few icy clouds have been seen falling on the Earth in the few years that humans have been observing the upper atmosphere, then over the life of the Earth, it would add up to about the amount in the oceans.

;-D Cool huh?

Answer 2

A widely accepted theory which makes sense to me is the cosmic one. There was water in the cloud from which earth coalesced. It is also well known that comets have in past eons struck earth and of course these space travelers are basically dirty snowballs. Some comets are rocky but the majority are mostly ice and snow and some dust.

Answer 3

A large portion of the material in the Earth's formation was likely ice, it was trapped in the Earth and out gassed as the material of the planet heated. That and the ongoing process of falling ice from space account for water on the surface of the Earth.

Answer 4

The earth was bigger to begin with.It got contracted later on. This squeezing resulted in liberation of water bound in the minerals of the earth. The sun rays evaporated it to make clouds which condensed as rains. The rain water finally settled in the lower regions of the earth giving rise to the oceans.

Answer 5

few different ideas:

comets - which are basically large masses of ice hit earth early in its lifetime and melted to form oceans

differentiation of gases from the earth's core at its formation led to water forming above the surface as hydrogen and oxygen mixed

massive volcanic output as steam is generated during an eruption

Answer 6

comets from deep space collided with earth , and they are mostly ice, also when the particles combined to form the earth the gases like hydrogen and oxygen rose to the surface, and the bend between water and hydrogen is simple, so the gas combines very easily

Answer 7

Comets

Answer 8

althou u said no God or Bible stuff.......it was there since the beginning..... it wasnt from the story of Noah and The Ark but from the beginning the only it rained for so long in the Noah's Ark story was cuz God was angry at the people....that did nothing to add water to the world.....

Answer 9

Probably from comets & chunks of mud & icy dust during
earths formation..

Answer 10

Earth was molten rock, and ice ball comets, etc hit it and melted.