Q:

How much water covers the Earth?

A:

According to the U.S. Geological Survey, about 71 percent of the Earth is covered in water. The total volume of all the water is equal to around 332.5 million cubic miles.

All of Earth's water, including water from oceans, icecaps, glaciers, lakes, rivers, groundwater and water in the atmosphere, could be put into a sphere with a diameter of about 860 miles. This is about the same distance between Atlanta, Ga. and New York City.

If only the Earth's fresh water were put together in a similar sphere, it would have a volume of 2.55 million cubic miles and be 169.5 miles in diameter.

Sources:

  1. water.usgs.gov

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