How Much Water Is Left In The World?
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Water is a constant in the planet, it does not change, meaning water as a whole volume.  What does change is water in its different forms.  The water cycle continues as always and rainfall together with snowfall are the sources of fresh drinking water.  Before it reaches the oceans this fresh water is stored as ice, snow, lakes, running rivers, underground water that seeped under.  Man and Nature is changing all this the global warming is melting the ice, the snows that were water deposits to be released in Spring are lower and lower because there is less snow, the rivers and lakes still exist but have been tapped to be used and what has not been tapped is continually being polluted by man, underground water has also been tapped like in the middle states of the US, tapped with total disregard to the replenishing rates these underground reserves need, thus have been or are being exausted, other underground reserves are being rendered useless again by man's pollution.  As a result earth's fresh water availability is progressively less and less.  Man knows this, it is no mistery,  but mankind is manking and so we continue the trend each day that goes by.
858276
Currently world population is approximately 6.5 billion. \n\nLets assume one person will eat up 2.5 m²\nSo 6.5 billion people will require 1.625 × 10⁹ m² of area ( if all of us stood side by side ).\n\nRussia has a total area of 17,075,400 × 10⁶ m² , with 13% of water.\nSo the total land area in Russia is 1.4855598 × 10¹³ m²\n\nIf we stuff all human beings into Russia ( ignoring the landscape), it will only eats up 0.0109386374 % of Russia!\n\nCorrect me if I made mistake. Thanks! ^^
638801
42 US gallons (about 34.97 Imperial gallons or 158.99 L).
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the radius of the Earth 6375.654784689 Km. There are many living things on it and it will not be ever counted exactly.
819075
97% of the worlds water is salt water, 2% would be fresh water locking in glaciers and ice caps, and the remaining 1% would be stored in aquifiers, groundwater, lakes, rivers, ponds, streams. so to answer the question, ponds represent<1% of the worlds water supply
984374
Well, that depends.  There is evidence of algae at 3.5 billion, probably photosythetic cells by 2.0, and clear plants by 400 million.  With a 4.6 billion year old earth, that's 76%, 43%, or 8.7% of the time.
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125% the density of water.
180097
Most living things, including people, are about 80% water.
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Earth has a total surface area of 196,800,00 square miles. Approximately 57,300,00 square miles, or 29% of the total surface area is land. Water covers approximately 139,500,000 square miles, or 71% of the total surface area.
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About 3% of earth's water is fresh water with two-thirds of this locked in glaciers and polar icecaps. So only 1% is in lakes and rivers.
56978
water, water and more water
657896
32.99 gallons\n39.6 US gallons
313516
you can check the hydrology subject, precipetation infiltrate the earth, run off on the surface and evaporate, count the usage of water of every individual multiply by population plus waste you can get the answer
119186
(A) total square kilometers = 500,000\n(B) square meters/square kilometer = 1,000,000\n(C) total square meters (A*B) = 500,000,000,000\n(D) 2% Reduction in Land (.02*C) = 10,000,000,000\n(E) Liters of water per square meter = 20\n(F) liters of water per day in lost land (D*E) = 200,000,000,000\n(G) Days per year = 365\n(H) liters of water per year lost (F*G) = 73,000,000,000,000
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For all things water see http://en.wikipedia.org/wiki/Water
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Water is important to all living things. Up to 60% of the human body is water, the brain is composed of about 70% water, blood is 82% and the lungs are nearly 90% water. Water is the principal constituent of the fluid that surround and are within all living cells. (Nutrition Almanac) Only oxygen is more important than water in sustaining life.\n\nThe body needs to remain sufficiently hydrated, otherwise all organs begin to shut down.\n\nFor more info, see:\n\nhttp://www.oxy.cc/
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.