2006-09-06 03:36:33 · 32 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
Generally speaking, there is a finite amount of water on the Earth. However, some water vapor is lost to space and some meterorites bring water to the Earth. In addition, water is produced by burning fossil fuel hydrocarbons, such as gasoline and diesel fuel. Therefore, the water content of the Earth is probably growing slightly.
2006-09-06 03:43:16 · answer #1 · answered by pvreditor 7 · 0⤊ 0⤋
The vast majority of water on the earth has been around for millions of years. Is there a finite amount, not possible. Photosynthesis has O2 as a by-product during the day and H2O and CO2 at night. Lightning strikes on bodies of water separate water molecules. The amount of water fluctuates hourly. Molecules change and atoms normally don't. It would be safe to say that the Earth has the same amount of Oxygen and Hydrogen since day one. (almost)
2006-09-06 04:29:34 · answer #2 · answered by golden_retriever4u 2 · 1⤊ 0⤋
not sure about the past. But clearly the amount of water on Earth is finite. Juste like the amount of anything else on earth.
2006-09-06 03:38:35 · answer #3 · answered by AntoineBachmann 5 · 0⤊ 0⤋
The amount of water on Earth is finite but not fixed.
It changes every time a molecule of hydrogen - or any molecule containing hydrogen, which includes most fuels and foods - burns. It changes every time a photon strikes a leaf and causes a photosynthetic reaction.
But don't worry, there will always be enough to go round. If anything, our problem is that there will soon be too much of it around!
2006-09-06 04:30:49 · answer #4 · answered by gvih2g2 5 · 2⤊ 0⤋
At any one time there is a finite amount of water on the earth.
The total amount of water is difficult to measure because it is in a constant state of change.
Thus making water in variable amounts at different times, in different physical states.
2006-09-06 03:53:09 · answer #5 · answered by SUNDANCE 1 · 1⤊ 0⤋
Yes. Water changes form (gaseous, liquid, and solid states) as it moves through the water cycle. There's the same amount of water available now as there was when the earth was formed. While 70% of the Earth's surface is covered by water, 97.5% of the world's water is saltwater and 2.5% freshwater. Most of this freshwater is trapped in polar icecaps, with much of the rest found as soil moisture or kept in underground aquifers.
2006-09-06 03:40:57 · answer #6 · answered by surfinthedesert 5 · 0⤊ 0⤋
Yes, there is still the same amount of water on this planet as there was 65 million years ago. The water is recycled over and over agian, nothing is lost. Also, you cannot have an infinate number of anything. Infinate means endless, there is an end to water, there is not an infinate amount of water on this planet, because it ends. You should ask is there still the same amount of water as there was 65 million years ago?
2006-09-06 03:49:49 · answer #7 · answered by chris 2 · 0⤊ 0⤋
There there is and there alwasy has been a finite amount of water on Earth.... If there was an infite amount of water then the universe would be filled with it!
2006-09-06 03:43:30 · answer #8 · answered by break 5 · 0⤊ 1⤋
There has always been a finite ammount of water on the planet, that ammount is slowly increasing as we pickup small ammounts from space, (comet tails & meteorites).
2006-09-06 03:54:02 · answer #9 · answered by Red P 4 · 0⤊ 0⤋
Yes, and yes. Earth isn't infinite, so it can't hold an infinite amount of water. But it's a lot.
2006-09-06 03:37:58 · answer #10 · answered by hslayer 3 · 0⤊ 0⤋