Find solution
Where Does Water Come From?

Where did the water come from on earth?

  • Since the earth began as huge molten rock billions of years ago, and the temperature was awfully high. Where exactly did water come from, and how did it form? Wouldnt have the immense heat evaporated it?

  • Answer:

    4.0 Billion Years Ago, Earth’s surface cools enough for most of the water that has collected in the atmosphere from comets and volcanic outgassing to rain down to the surface and fill in the basins forming the world’s oceans. http://www.ccsf.edu/departments/history_... I just came across this so I thought I would add it. (Note: atmosphere came first, then oceans, then life, then oxygen in the atmosphere) Formation of the oceans 1. All gases released into atmosphere from Earth including H2O a) These gases formed the early atmosphere b) Initial crust temperature=600C (So H2O and other gases stayed gases) 2. The process that should occur a) Crust cools to below 100C b) All H2O would have condensed c) Acid gases would react with igneous crystal minerals to form sediments and initial oceans d) Original ocean was an extremely hot, salty ocean 3. What is thought to have occurred a) H2O, CO2, and HCL existed into the oceans b) Water (at a slow cooling rate) would condense into an early, hot ocean c) Then HCI would have dissolved into the oceans d) Early Acid Ocean reacted with crystal minerals, dissolving silica and catious, creating aluminous clay materials to form sediments on ocean floors. e) Presence of blue green algae in fossil records more than 3 billion years ago prove surface temperature cooled lower than 100C 4. Degassing a) Most degassing occurred in the beginning, and only a little bit since (degassing=Earth giving off gases with volcanic eruptions)

uiop b at Yahoo! Answers Visit the source

Was this solution helpful to you?

Other answers

In my opinion God created earth. And in the view of other people the heat formed clouds of moisture that cloud produced water, the water frozed ice age melted created oceans and rivers LA LA

enano

byproduct of ammonia,methane,and electricity,thence formeth amino acids

quackpotwatcher

Water is made of hydrogen and oxygen and there was plenty of these elements present when the earth formed, all that was needed was a small flame to ignite the hydrogen and a chemical reaction combined it with the oxygen to form water. The great heat did cause the water to evaporate but it was still water, it was now in another form and another place, when the earth cooled all of this water vapour which was now water fell as rain, it probably rained for a million years or longer and when it finally eased off the earth's surface was probably covered to a depth of a mile with water.

johnandeileen2000

Supposedly from comets

Gene

The bulk of earths water was there from the beginning but for a long time it was all steam. The earths atmosphere was also about 70 times as dense as it is now. Eventually the earths surface cooled down enough for water to begin condensing and rain down. Alot of water would also have come to earth via comet impacts. So it is not so strange that earth has so much water since the molecule itself is quite common. The real question is: since earth, venus and mars all formed in the same way, howcome those planets have almost no water? It is plausble that mars and venus did have lots of water. Surface features on mars supports this as does the abundance of heavy hydrogen isotopes in venus atmosphere. But both planets have lost their water due to interaction with the suns ultraviolet rays that split water into hydrogen and oxygen. And when the hydrogen is free it can reach escapeenergy and vent off into space.

DrAnders_pHd

water is one of the most abundant elements in the universe. chemical reaction between oxygen and hydrogen makes it.

Samantha

Because even in the molten lava in the core of the planet, there is still water mixed with it... So when it get out from volcanos, it just vaporized in the atmosphere to fall back later as rain... Also some of it come from fallen comets, mostly made of ice...

Jedi squirrels

Yes, but after millions of years the huge molten rock cooled down, allowing the water to condense.

Karim

meteorites are made of frozen water, so as they impact to the earth, they melted and made the oceans

The Chosen Pilot

Load more

Related Q & A:

Just Added Q & A:

Find solution

For every problem there is a solution! Proved by Solucija.

  • Got an issue and looking for advice?

  • Ask Solucija to search every corner of the Web for help.

  • Get workable solutions and helpful tips in a moment.

Just ask Solucija about an issue you face and immediately get a list of ready solutions, answers and tips from other Internet users. We always provide the most suitable and complete answer to your question at the top, along with a few good alternatives below.