What do the dead sea and the Caspian Sea have in coommon?

What is the major lakes north of st peterburg? Where is phonex located? What was the second capital of georgia? Are bull sharks in Lake Michigan? What caused the tacma narrows bridge to collapse? Why are there so many volcanoes around the Mediterranean Sea? What are the name of the 5 great lakes? What the distance from Mount Rushmore to Portland Oregon? Why does sunlight seldom reach the Amazon rain forest floor? How important is the amazon river to commercial trade? Can a dying root of a tooth cause facial and headache? Which immigrants did not have to go to Ellis island? What famous wreck has been photographed on the ocean floor? What lives in a river? Why should you go to Alton towers? Are the rocky mountains in central Asia? What is the process called to remove salt from water? Why is Niagara Falls a good place for energy? What are the seven seas that boarder southern Europe from Spain to eastern Russia? Why is there no salt in the great lakes?