Because the seas do not reach them to get salt into them
The Great Lakes are not salty because they are filled with freshwater from rivers and streams, and are not connected to the ocean.
yes there are salty seas. but lakes are very rare to find salty.
The Great Lakes have an outlet: The Saint Lawrence. The reason why most lakes are not salty is because they have an outlet so the minerals do not accumulate. On top of that, they are well above sea level, so there is no chance of saltwater intrusion.
These lakes tend to be salty, as minerals are constantly carried into them by incoming water.
for freshwater crocodiles(they like to live near to lakes, rivers., etc..,) and for salt-water crocodiles(they live in sea water and some salty lakes..)..
Some lakes, such as the Great Salt Lake in Utah, are salty. The Great Lakes are freshwater because there is no source of salt to supply them.
Landforms in Botswana include delta regions, hills, deserts, and rivers. There are also grasslands, savannahs, plateaus, lakes, and salty regions.
Assuming the question is, "Is the Atlantic Ocean full of saltwater?", then the answer is yes. Ocean and seas are salty; rivers and lakes are freshwater.
These lakes have no outlets to carry the salts away to the sea.
The rivers and lakes of Asia.
what rivers lakes and montains
najor rivers or lakes of Nunavut