Question

The oceans cover about 70 percent of the Earth's surface. Ocean water contains salts and we say that ocean water has a certain salinity. You are very familiar with a salt: NaCl. But there are other salts in the oceans. Scientists estimate that if the salt in the oceans could be removed and spread evenly over the Earth's land surface it would form a layer more than 500 feet thick, about the height of a 40-story office building (NOAA). Scientists also believe that the amount of salt in the Earth's oceans remains pretty constant. Salt water - fresh water. Where did the salt in the oceans come form?

Answer 1

The salt in the oceans comes from various sources, including rocks, rivers, and volcanic activity.

Step-by-step explanation:

The salt in the oceans comes from various sources, including rocks, rivers, and volcanic activity. When it rains, water erodes minerals from rocks and carries them into rivers, which eventually flow into the ocean. Additionally, volcanic activity releases minerals and gases into the ocean, contributing to its salinity.