You have a penny in both types of pools ... ???
There is no difference other then the actual salt and saltwater chlorination equipment.
saltwater has salt in it, freshwater does not.
nada
Saltwater taffy tastes better. :D
I think marine aquariums are saltwater unlike freshwater that do not have saltwater
Rain water is fresh water and does not have salt. Saltwater is not fresh and does have salt.
Chlorine-37 has more neutrons in it than Chlorine 35
copper is a red solid. Chlorine is a greenish gas.
The same as in the ocean
The difference in electronegativity between sodium and chlorine is the reason.
Maybe that saltwater animal can endure hard water and freshwater animals can't.
The fact that a saltwater ecosystem has salt in it. 'salt'water ecosystem