Hayat Ashraf

The salinity of ocean water refers to the concentration of dissolved salts, minerals, and other substances in the water. Here are some key points about the salinity of ocean water: 1. Average Salinity: The average salinity of the world's oceans is approximately 3.5%. This means that for every 1,000 grams of seawater, about 35 grams are dissolved salts. The most abundant dissolved salt in seawater is sodium chloride (common table salt). 2. Variations in Salinity: Salinity can vary from place to place within the oceans. Coastal areas may experience lower salinity due to freshwater inputs from rivers and precipitation, while regions near the equator or in enclosed basins (e.g., the Red Sea or the Great Salt Lake) may have higher salinity levels. 3. Factors Affecting Salinity: Salinity in the oceans is influenced by several factors, including evaporation, precipitation, river runoff, and sea ice formation and melting. Evaporation increases the salt concentration, while precipitation an...