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What is the approximate percentage of water on earth?

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Water is on and in the Earth. The vast majority of water on the Earth's surface, over 96 percent, is saline water in the oceans. The freshwater resources, such as water falling from the skies and moving into streams, rivers, lakes, and groundwater, provide people with the water they need every day to live. read more

Earth’s water mass is 1.386 billion km³ (333 million cubic miles), equals to 1.386 x 10^21 liters. with 97.5% being salt water and 2.5% being fresh water. the density of salt water is 1.025, just slightly higher then fresh water. read more

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