how much fresh water on earth?
449917
Water Systems:\n\nhttp://www.ec.gc.ca/water/images/nature/prop/a2f2e.jpg\n\n95% of Earth's water is Salt Water leaving 5% as Fresh Water.  Nearly all of the Fresh water is in the form of Ice or underground.\n\nThis site appears to have a lot of data as well as activities for learning.\n\nhttp://members.aol.com/bowermanb/water.html
1125651
Yes it is. The water is constantly recycled, between lakes, groundwater, rivers, seas, ice caps/galciers, clouds, used by humans etc. (Not in this order though)\n\nThe only time that there is any 'new' water introduced is when a volcano erupts.
120972
The water in this planet can support all of it inhabitant but places like desert have difficulties in getting enough water. We need water because we use water as a medium to cool down.
543490
0.96 cubic metres of water for every metre of the canals length.\n\nor 8.24 square metres of surface covered for every metre of length.
309151
Most of Earth's water condensed out of its early atmosphere, and that atmosphere came from world-wide volcanic eruptions. So, ultimately Earth's water resulted from volcanic activity, although much of it also comes from comets that entered our atmosphere.\n\nGod should be spelled B-I-G B-A-N-G\nPBrax@netscape.com
441071
As you know, the Earth is a watery place. Estimates vary, but somewhere between 70 and 75 percent of the Earth's surface is water-covered. But water also exists in the air as water vapor and in the ground as soil moisture and in aquifers. Thanks to the water cycle (view a graphic of the water cycle) our planet's water supply is constantly moving from one place to another and from one form to another. Things would get pretty stale without the water cycle!\n\nWhen you take a look at the water around you, you see water in streams, rivers, and lakes. You see water sitting on the surface of the earth. Naturally, this water is known as "surface water." Your view of the water cycle might be that rainfall fills up the rivers and lakes. But, how would you account for the flow in rivers after weeks without rain? In fact, how would you account for the water flowing down this driveway on a day when it didn't rain? The answer is that there is more to our water supply than just surface water, there is also plenty of water beneath our feet.\n\nEven though you may only notice water on the Earth's surface, there is much more water stored in the ground than there is on the surface. In fact, some of the water you see \n\nThere is about 323 billion gallons  of surface water and about 85 billion gallons  of ground water.
1120275
8 to 10 glasses of water a day. Roughly 1/2 gallon
265467
It is likely that the amount of water has increased over time. Water on the planet is considered to be from three sources, chemically separated from rocks, from meteorites, and as part of comets.\n\nHowever, contrary to the beliefs of many who have answered this question there are numerous earth processes that both create and eliminate water. There are sedimentary rocks on the planet that were deposited in water over 4 billion years ago, so it has existed on the earth for a long time. \n\nWe currently consume 83 million barrels of oil every day on the planet, and that oil and natural gas creates large volumes of water vapor from the hydrogen contained in it. In fact, it probably releases a larger volume of water than the volume of the oil since it combines with atmospheric oxygen. Burning coal also releases water.  In the overall volume of water on the planet, this is all probably insignificant. \n\nMany other processes both create and destroy water. Concrete for example chemically incorporates water into its structure when it solidifies. Many rock processes involve incorporation of water into the chemical structure of the rock, and others release water. Minerals such as gypsum are formed by chemical incorporation of water with anhydrite. The water becomes part of the rock. \n\nBiological processes also chemically consume water. Plants incorporate water into their carbohydrate molecules produced during photosynthesis. \n\nOf course, over geologic time most of these processes are cyclical so it is difficult to say if there is a trend in any direction. Most of them are fairly minor in relation to the total volume of water on the planet. \n\nhttp://ga.water.usgs.gov/edu/earthhowmuch.html
229644
Seems how the moon has no water...I think the earth has more
933439
I dont know, but seeing as no-one else answered, can I have the 10 points please ?\nBut if the question is directed at Earth then the Earth is covered with 70% water and approx 85% of that is salt water!
412941
water-supply inflow rate which supply water to its end use points at the required flow rate and pressure.\n\nEach person uses about 63.75 gallon a day\n\nA average family of four uses 255 gallons of water indoors per day.\n\nMultipy that by a small city of about 50,000 people\n127,500,000 gallon per day
289028
yes, but very little.\n\nsome water enters earths atmosphere from meteors and other cosmic debris.  other wise water can be created and destroyed through chemical processes that man preform, such as found in a fuel cell.  Ultimately not much.
556217
It's the most important part of our earth. Just like our body.. 70% portion of water is in our body.
56978
water, water and more water
268814
39752380197237209747607270767237672 liters is the exact answer
490831
Volume of Earth's Oceans = 3.28*10^8 mi^3\n\nconvert cubic miles to gallons:\n1 mi^3 = 5280^3 ft^3\n1 ft^3 = 7.48 US liquid gallons\n\nSo, volume = 3.28*10^8 * 5280^3 * 7.48 = 3.61*10^20\n\nAssume bucket size is 5 gallons (divide answer by 5):\n\n7.22*10^19 buckets are needed to fill all of Earth's oceans.\n\nThat's 72,200,000,000,000,000,000 5-gallon buckets, or 72.2 quintillion.
798933
water as in H2O? just ok...\nyeah covered with it... \nas long as the planet is not made up entirely of water.... that wold be like a big floating water vapor....\nhaha