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While Earth's surface is mostly water, Earth is nearly all rock. Just 0.5% of the planet by weight is water. More than 70% of the surface area of the planet today is covered by water; The other 30% is land.

en.wikipedia.org/wiki/Water_distribution_on_Earth

The water distribution on earth shows that most water in the Earth's atmosphere and crust comes from the world ocean's saline seawater, while freshwater ...

water.usgs.gov/edu/earthhowmuch.html

Dec 2, 2016 ... All Earth's water, liquid fresh water, and water in lakes and rivers. Spheres .... Note: Percentages may not sum to 100 percent due to rounding.

phys.org/news/2014-12-percent-earth.html

Dec 2, 2014 ... 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 ...

www.nationalgeographic.org/media/earths-fresh-water

Nov 12, 2012 ... Most people have heard Earth referred to as "the water planet." With that name comes the rightful image of a world with plentiful water.

www.fcwa.org/story_of_water/html/earth.htm

Ninety-seven percent of the water on the earth is salt water. Salt water is filled with salt and other minerals, and humans cannot drink this water. Although the salt ...

www.universetoday.com/65588/what-percent-of-earth-is-water

Oct 31, 2016 ... The Earth is often compared to a majestic blue marble, especially by those privileged few who have gazed upon it from orbit. This is due to the ...

www.livescience.com/29673-how-much-water-on-earth.html

Sep 9, 2010 ... All of the Earth's ocean water (middle) and freshwater (right). ... Some 72 percent of Earth is covered in water, but 97 percent of that is salty ...

www.ngwa.org/Fundamentals/teachers/Pages/information-on-earth-water.aspx

Sep 5, 2012 ... The earth has an abundance of water, but unfortunately, only a small percentage (about 0.3 percent), is even usable by humans. The other 99.7 ...

www.enotes.com/homework-help/how-much-percent-earth-land-how-much-water-46469

Nov 10, 2008 ... The interesting thing is that the percentage of water on Earth does not include only the obvious sources of water, like oceans and lakes, but less ...