Question

why is ocean water is salty

Answer 1

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). ... Sodium and Chloride are 'salty.'

Answer 2

The oceans are salty or saline as it contains large amounts of dissolved salts. Most of the salt is sodium chloride or the common table salt.