Question: why is there no salt in rivers

Karen answered on 6 Nov 2018:

This is a great question 🙂 There is a little bit of salt in rivers but not enough for us to taste. It washes in out of rocks and soils that are being broken down by rain. The rivers flow into the ocean and leave all the salt there. The oceans have built the salt from rivers up over millions of years, getting saltier and saltier. Rivers though get freshwater from rain, the rain continually flushes away the salt so that rivers stay low in salt. The simple answer is that rivers are always giving their salt to the sea!