Is it true to say that there has always been and will always be the same amount of water on the planet at all times in one form or another?
by 
muddy1
ANSWERS: 8
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Yes that is true.... You're drinking Michael Jacksons Urine : ) it's true... The only difference is, that more is becoming used; thus not fresh. that is where the problem begins... I can't remember the name of the scientific law ....
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Water comes in many forms, sea water, lakes, ice and of course clouds, there is the same amount overall now than there has ever been, or ever will be.
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No, and forgetting about the possibilities of creating water through combining atoms or destroying it through smashing them, the space shuttle vents waste into space. Unless that water eventually makes it back to the Earth, it's gone.
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Not since we started sending rockets into space. Though I imagine we can cope with the lost.
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Except for what has escaped in spacecrafts or what has been split by scientist, there is the same amount of everything still right here on our planet. It may change for but it doesn't leave.
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No it is not true, the main reason is one given earlier, space shuttles! However there is also a diffrent reason, at the edge of space a little but of the atmosphere does escape into outer space, it is not much but it does happen! I will say, however, that the majority of the earths atmosphere is Nitrogen gas which is alot lighter than Water vapour and so the amount of water that goes that high is not much at all.
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The planet obtains more water from wasting comets, which are the dirty snowballs of the universe and contain a lot of ice. Our gravity attracts the vapor as we travel through their path. With our atmosphere intact, we should retain what water we have - that's a guess - but loss through extraplantary travel is insignificant when compared what we can pick up from space.
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The Earth formed in a part of the solar system that has very little water. What water we have was brought into this region from further out by comets. So, Earth has gained water over time as a result of collisions with comets. While these collisions are rare now, there is no reason to believe that another one won't happen at some point in the future adding even more water to our planet.
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