No. Some are man made.
They are ALL natural. If they were salt they would be a Sea.
There are about 1,000 natural lakes in Washington
none of the great lakes are man made all of them were made from nature
The Great Lakes are a natural feature.
There are no US states that have no lakes at all. If estuarial lakes are excluded, then Texas may be said to have only one (possibly 2) naturally formed lakes. Maryland is said to have no lakes because they are all "ponds" (i.e. smaller than lakes).
All lakes in Georgia are man made. This does not include the swamp in south Georgia which are natural, protected wet lands.
No not all lakes in Canada are man made. The Great Lakes for example were made when the glaciers of the last Ice Age were receding.
North Carolina has no natural lakes. They are all man made.
The Iowa Great Lakes
There are no rivers or lakes in U.A.E.
No
Yes Lakes were formed by glaciers