Is there the same amount of water right now on earth. as there has been since life began?

Answer 1

No-one really knows, I mean there is still a huge debate between religious people and scientific atheists about how Earth and all living beings were created. I don't believe any expert who will publicly state they know the answer about what the climate was like millions of years (or even thousands of years) ago because they cannot be 100% sure.

Answer 2

Probably not exactly the same amount. There are the same number of Oxygen atoms and Hydrogen atoms which make up water, but water is constantly undergoing changes (into hydronium ions, hydrogen peroxide, etc. and then back to water) So at this very instant, maybe not, but it is very close.

Glaciers are still water in solid form (ice), and so is water vapor from "global warming". Life didn't start until there was water, it couldn't have...but one could argue that comets have brought more water if they were large enough to make it far enough into the atmosphere before melting and the vapors drifting into space. there is some evidence of this possibly happening in the 6th century:

http://www.spaceflightnow.com/news/n0402/07darkages/

Answer 3

no, because most of the people now releases water and needs water everyday and the people now is much more than the number of peoples before so the amount of water is not the same as life began

Answer 4

It depends on if you're talking about free water - there is obviously more biomass today than when life began, therefor more water is tied up in living organisms, and not free.

Water is also delivered to our atmosphere through meteorites and comets, although it's a small amount.

Answer 5

Earth itself was much different then, ocean covered most of the world..with the increase of the land mass, the water became part of the atmosphere. it is mostly recycled now.

Water vapor is present in such abundance throughout the atmosphere that it acts like a blanket of insulation around our world, trapping heat and forcing surface temperatures higher than they would be otherwise. i have included links for your viewing on The ocean weather factory and The global heat engine.

it discusses global warming and causes also.

Answer 6

According to this article in Science Daily
http://www.sciencedaily.com/releases/1999/01/990106080737.htm
we're getting "about 20 snow comets weighing 20 to 40 tons each disintegrate in the Earth's atmosphere every minute."
Its also in the NASA website
http://impact.arc.nasa.gov/news_detail.cfm?ID=77
"Two University of Iowa space physics researchers today,Tuesday, Dec. 9, presented a new study based upon photographs taken by cameras aboard NASA's Polar spacecraft as further proof of their 11-year-old theory that thousands of house-sized ice comets disintegrate in the Earth's atmosphere each day. "

Answer 7

no.... when life began there was actually no water
4 billion years ago.
there were comets and other asteroids with ice that collided with earth melted and created our oceans

from there the atmosphere was created and life began, and this is where the water cycle started and from there it was not added nor subtracted


(this is over a 2 bill year span)

Answer 8

Yes. That is what the water cycle does. Water falls as rain and runs down into bodies of water. Those bodies of water evaporate and form clouds. The clouds drop water as rain and the cycle continues.

Whether the water is rain, snow, ice, fresh water or salt water, or even part of animal or plant bodies the total is all the same and sooner or later water rejoins the cycle.

Answer 9

hmm. i guess so cuz of water cycle
but not really that sure cuz of the stuff happening to earth these days :/

Answer 10

no i dont think that amount of water is same millions of years ago
it is increasing because glacier are melting