What's the salt content of the ocean?
On average, seawater in the world's oceans has a salinity of approximately 3.5%, or 35 parts per thousand. This means that for every 1 litre or 1000 mL of seawater there are 35 grams of salts, mostly, but not entirely, sodium chloride dissolved in it.
Join Alexa Answers
Help make Alexa smarter and share your knowledge with the worldLEARN MORE