how much water does earth have
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What percent of Earth is water? In simplest terms, water makes up about 71% of the Earth’s surface, while the other 29% consists of continents and islands. To break the numbers down, 96.5% of all the Earth’s water is contained within the oceans as salt water, while the remaining 3.5% is freshwater lakes and frozen water locked up in glaciers and the polar ice caps. Of that fresh water, almost all of it takes the form of ice: 69% of it, to be exact.
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Water distribution on Earth What is the percentage of the Earths water is salt water? The total volume of water on Earth is estimated at 1.386 billion km³ (333 million cubic miles). About 97.5% of water on Earth is salt water and 2.5% fresh water. Of the 2….5% fresh water, only 0.3% is in liquid form on the surface. A breakdown of the various forms of water is as follows, going from the largest to the smallest.
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How much water is there on, in, and above the Earth? 1 If all of the world's water was poured on the contiguous United States, it would cover the land to a depth of about 107 miles (145 kilometers).  Of the freshwater on Earth, much more is stored in the ground than is available in lakes and rivers.
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Amount of fresh water on earth? Out of all the water on Earth, saline water in oceans, seas and saline groundwater make up about 97% of it. Only 2.5–2.75% is fresh water, including 1.75–2% frozen in glaciers, ice and snow, 0.5–0.75% as fresh groundwater and soil moisture, and less than 0.01% of it as surface water in lakes, swamps and rivers.
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The Earth has lost a quarter of its water This finding can be used to show that back in time there was more water on Earth than today. Although water covers 70 percent of the Earth's surface, water is actually a rare substance that represents just 0.05 percent of the Earth's total mass. Water has nevertheless played a crucial role in the emergence of life on Earth. Without water, the Earth would in all likelihood be a dead planet. The amount of water on the planet has not always been the same, however. A research group at the Natural History Museum of Denmark has discovered this by measuring how hydrogen isotope ratios in the oceans have changed over time.
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How Much Water Is on Earth? If Earth was the size of a basketball, all of its water would fit into a ping pong ball. How much water is that? It's roughly 326 million cubic miles (1.332 billion cubic kilometers), according to a recent study from the U.S. Geological Survey. Some 72 percent of Earth is covered in water, but 97 percent of that is salty ocean water and not suitable for drinking. There's not a lot of water on Earth at all, said David Gallo, an oceanographer at the Woods Hole Oceanographic Institution (WHOI) in Massachusetts.
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The Water Cycle: Water Storage in the Atmosphere One estimate of the volume of water in the atmosphere at any one time is about 3,100 cubic miles (mi3) or 12,900 cubic kilometers (km3). That may sound like a lot, but it is only about 0.001 percent of the total Earth's water volume of about 332,500,000 mi3 (1,385,000,000 km3), as shown in the table below. If all of the water in the atmosphere rained down at once, it would only cover the globe to a depth of 2.5 centimeters, about 1 inch.
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Where is all of the Earth's water? The ocean holds about 97 percent of the Earth's water; the remaining three percent is distributed in many different places, including glaciers and ice, below the ground, in rivers and lakes, and in the atmosphere. According to the U.S. Geological Survey, there are over. of water on the planet.
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What Is the Land to Water Ratio on Earth? More than 68 percent of the planet's fresh water is largely inaccessible, located in glaciers, ice caps and permanent snow. Another 30 percent of the planet's fresh water is located in the ground, within a half-mile of the Earth's surface. The amount of water located on Earth is enough to cover the entire land mass of the contiguous United States to a depth of 107 miles.
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- A previous version of this article, published in 2000, is now archived as a PDF file. Viewed from space, one of the most striking features of our home planet is the water, in both liquid and frozen forms, that covers approximately 75% of the Earth’s surface. Geologic evidence suggests that large amounts of water have likely flowed on Earth for the past 3.8 billion years—most of its existence.
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How much water is there on, in, and above the Earth? For a detailed explanation of where Earth's water is, look at the data table below. Notice how of the world's total water supply of about 332.5 million mi 3 of water, over 96 percent is saline. Of total freshwater, over 68 percent is locked up in ice and glaciers.Another 30 percent of freshwater is in the ground. Rivers are the source of most of the fresh surface water people use, but they only constitute about 300 mi 3 (1,250 km 3), about 1/10,000 th of one percent of total water.or a detailed explanation of where Earth's water is, look at the data table below. Notice how of the world's total water supply of about 332.5 million mi 3 of water, over 96 percent is saline. Of total freshwater, over 68 percent is locked up in ice and glaciers.
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What percent of Earth is water? But how much of Earth is water—how much water contributes to the actual mass of the planet? This includes not just the surface of the Earth, but inside as well. Scientists calculate that the total mass of the oceans on Earth is 1.35 x 1018 metric tonnes, which is 1/4400 the total mass of the Earth. In other words, while the oceans cover 71% of the Earth's surface, they only account for 0.02% of our planet's total mass.
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Total Percent Of Fresh Water Remaining On The Surface Of The Earth Is Shockingly Small Only 0.000067 of the total water on earth is available on the surface as non-saline fresh water in our rivers, lakes, and streams. That’s just 1/150th of one percent of the total water on the planet! 0.0067 percent. That’s how precious our fresh water is.
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What Percent of Earth is Water? If you were to gather all the Earth’s fresh water together as a single mass (as shown in the image above) it is estimated that it would measure some 1,386 million cubic kilometers (km 3) in volume. Meanwhile, the amount of water that exists as groundwater, rivers, lakes, and streams would constitute just over 10.6 million km 3, which works out to a little over 0.7%.
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- have a limited amount of usable fresh water. Over 97 percent of the earth’s water is found in the oceans as salt water. Two percent of the earth’s water is stored as fresh water in glaciers, ice caps, and snowy mountain ranges. That leaves only one percent of the earth’s water available to us for our daily water supply needs. Our
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How much water is there on Earth? Ninety-eight percent of the water on the planet is in the oceans, and therefore is unusable for drinking because of the salt. About 2 percent of the planet's water is fresh, but 1.6 percent of the planet's water is locked up in the polar ice caps and glaciers. Another 0.36 percent is found underground in aquifers and wells.
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- How to watch Michigan State vs. Purdue: Game guide, TV schedule, streaming, odds. By Mike Fiammetta  @mikefiammetta on Oct 11, 2014, 10:00a +. After a huge Week 6 game, the Spartans roll into West Lafayette to meet a mismatched Boilermakers squad.
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What Percent of Earth is Water? But how much of Earth is water – i.e. how much water contributes to the actual mass of the planet? This includes not just the surface of the Earth, but inside as well. In terms of volume, all of the water on Earth works out to about 1.386 billion cubic kilometers (km³) or 332.5 million cubic miles (mi³) of space. But in terms of mas, scientists calculate that the oceans on Earth weight about 1.35 x 10 18 metric tonnes (1.488 x 10 18 US tons), which is the equivalent of 1.35 billion trillion kg, or 2976 trillion trillion pounds.
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What Percentage of Earth Is Water? The oceans hold 96.5 percent of that water, and there is also water in icecaps and glaciers. The air holds water vapor, and the human body... Approximately 71 percent of the Earth's surface is water. The oceans hold 96.5 percent of that water, and there is also water in icecaps and glaciers. The air holds water vapor, and the human body...
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Approximately how much of earth is covered with water? Of the freshwater on Earth, much more is stored in the ground than is available in lakes and rivers. More than 2,000,000 cubic miles of fresh water is stored in the Earth, most within one-half mile of the surface. Contrast that with the 60,000 cubic miles of water stored as fresh water in lakes, inland seas, and rivers.
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Water Only 2.5% of this water is freshwater, and 98.8% of that water is in ice (excepting ice in clouds) and groundwater. Less than 0.3% of all freshwater is in rivers, lakes, and the atmosphere, and an even smaller amount of the Earth's freshwater (0.003%) is contained within biological bodies and manufactured products.he collective mass of water found on, under, and over the surface of a planet is called the hydrosphere. Earth's approximate water volume (the total water supply of the world) is 1,338,000,000 km 3 (321,000,000 mi 3).
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Environmental Science: Earth's Water Even though the planet is 71 percent water, the largest percentage of Earth's water is saltwater in the oceans and cannot be used for drinking. The table describes the main locations of water on Earth. Notice that about 98 percent of Earth's water is saltwater. The remaining 2 percent is freshwater, but the majority of that percentage is found in the polar ice caps and glaciers, which is not readily available to us.
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How much water is there on, in, and above the Earth? That one represents fresh water in all the lakes and rivers on the planet. Most of the water people and life on earth need every day comes from these surface-water sources. The volume of this sphere is about 22,339 mi3 (93,113 km3). The diameter of this sphere is about 34.9 miles (56.2 kilometers).
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How much of the earth is covered by water? Rating Newest Oldest. Best Answer: There is about 320,000,000,000,000,000 gallons of water on the earth. Which means about 71% covers the surface and the average depth of water on earth is a few thousand feet. 98% of the water on earth is salt and 2% is fresh. Source(s): Tripod · 4 years ago.
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How much water is there on Earth? ­The oceans are huge. About 70 percent of the planet is covered in ocean, and the average depth of the ocean is several thousand feet (about 1,000 meters). Ninety-eight percent of the water on the planet is in the oceans, and therefore is unusable for drinking because of the salt.About 2 percent of the planet's water is fresh, but 1.6 percent of the planet's water is locked up in the polar ice caps and glaciers.Another 0.36 percent is found underground in aquifers and wells.omething like 326,000,000,000,000,000,000 gallons (326 million trillion gallons) of the stuff (roughly 1,260,000,000,000,000,000,000 liters) can be found on our planet.
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- 1 Freshwater makes up less than 3% of water on earth, and over two-thirds of this is tied up in polar ice caps and glaciers. Freshwater lakes and rivers make up only 0.009% of water on Earth and groundwater makes up 0.28%.  Water is essential for all life forms.