the world's oceans cover what percentage of earth's surface quizlet?
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What proportion of the Earth's surface do oceans cover? The oceans cover 71 percent of the Earth's surface and contain 97 percent of the Earth's water.
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In reality, however, we have a limited amount of usable fresh water. Over 97 percent of the earth's water is found in the oceans as salt water.
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Freshwater makes up a very small fraction of all water on the planet. While nearly 70 percent of the world is covered by water, only 2.5 percent of it is fresh. The rest is saline and ocean-based. Even then, just 1 percent of our freshwater is easily accessible, with much of it trapped in glaciers and snowfields.
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Ocean is a Large Water Body Covering the 70% of Earth and for Territorial Purposes these are Named and these Oceans are Divided into Seas where as Beach is a Shoreline of any Waterbody such as Lakes,Sea etc., which actually consists of Sand, Rocks, Pebbles and Gravels.
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Earth's ocean is made up of more than 20 seas and four oceans: Atlantic, Indian, Arctic, and Pacific, the oldest and the largest. The ocean accounts for 0.022 percent of the total weight of earth, weighing an estimated 1,450,000,000,000,000,000 short tons (1 short ton = 2,000lbs).
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Ocean: The vast body of salt water that covers almost three fourths of the earth surface. Sea: A sea is part of the ocean partially enclosed by land. Seas are found on the margins of the ocean and are partially enclosed by land. Beach: An expanse of sand and peddles along a shore.
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About 3 percent of Earth's water is fresh water. Of the 3 percent, about 69 percent is ice.
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Although the core and mantle are about equal in thickness, the core actually forms only 15 percent of the Earth's volume, whereas the mantle occupies 84 percent. The crust makes up the remaining 1 percent.
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The ocean holds about 97 percent of the Earth's water; the remaining three percent is found in glaciers and ice, below the ground, in rivers and lakes. Of the world's total water supply of about 332 million cubic miles of water, about 97 percent is found in the ocean.
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About 71 percent of the Earth's surface is water-covered, and the oceans hold about 96.5 percent of all Earth's water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog.
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Fresh water on earth is only 2.5% of the total water when 70% of the earth's surface is covered by water. Around 70% of industrial waste is dumped to water. 80% of the water pollution is caused due to domestic sewage. More than 6 billion pounds of garbage, mainly plastic end up in the oceans every year.
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But, most of Earth's water, and almost all of the water that people can access, is saline, or salty water. Just look at the oceans and remember that oceans comprise about 97% of all water on, in, and above the Earth.
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The surface of the planet is approximately 71% water and contains (5) five oceans, including the Arctic, Atlantic, Indian, Pacific and Southern. Their borders are indicated on the world image (above) in varied shades of blue.
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Its average depth is about 3,688 meters (12,100 ft), and its maximum depth is 10,994 meters (6.831 mi) at the Mariana Trench. Nearly half of the world's marine waters are over 3,000 meters (9,800 ft) deep. The vast expanses of deep ocean (anything below 200 meters or 660 feet) cover about 66% of Earth's surface.
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The ocean absorbs about 30% of the carbon dioxide (CO2) that is released in the atmosphere. As levels of atmospheric CO2 increase from human activity such as burning fossil fuels (e.g., car emissions) and changing land use (e.g., deforestation), the amount of carbon dioxide absorbed by the ocean also increases.
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Over 97% of the Earth's water is found in the planet's five oceans for a total volume of about 1,400,000,000,000,000,000,000.000000000000000000000000 liters. The Pacific Ocean is the largest ocean, covering 165,760,000 sq. km — more than double the area of the Atlantic Ocean at 82,400,000 sq.
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Oceans are vast bodies of water that cover roughly 70% of the earth. Seas are smaller and partially enclosed by land. The five oceans of the earth are in reality one large interconnected water body. In contrast, there are over 50 smaller seas scattered around the world.