Question

If we were taking salinity readings from an area in an estuary where a river is flowing into the ocean water, we would find the freshest water at the surface. This is true because freshwater is

more dense than saltwater
less dense than saltwater

colder than the saltwater

better solvent than saltwater

Answer 1

More dense. If it is more dense it weighs more, thus sinks to the bottom.

Answer 2

thanks!

Answer 3

that was the wrong answer -_-

Answer 4

no its not. Salt is more dense than water, saltwater is below freshwater.

Answer 5

I agree that freshwater is less dense than saltwater and so the least salinity would be found at the surface.

Answer 6

What is the right answer then?