Why are the Oceans Salty ?

  • The oceans cover about 70 percent of the Earth’s surface.
  • Most of Earth’s water is 97 percent salt water that is found in oceans. Only 3% is fresh water.
  • Salt Water is filled with salt and other minerals.
  • Salt in the ocean comes from rocks on land. The rain that falls on the land contains some dissolved carbon dioxide from the surrounding air. This causes the rainwater to be slightly acidic due to carbonic acid (which forms from carbon dioxide and water).

18 - Why is the Ocean Salty

Salty Ocean

Why is the Ocean Salty

Why is the sea salty - Elements in Rivers and Seas

Sea-Surface Salinity (PSU)

http://flowergarden.noaa.gov/image_library/brineimages.html

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