Is it safe to swim in a canal?

Why were salmon introduced into the great lakes? Why is the dead sea so named? Types of coral reefs found in Barbados? A sizeable inland body of water? Is there a shark in Lake Erie? What happened to the immigration building on June 14 1897? What can you compare Mount Rushmore to? Why there are two China's? Did building king khufu's pyramid have any problems? Where does the Flint River end? What is archipelago in the Pacific ocean? Children of the river? Is a tributary in the upper course of a river? What is the name of a desert covered with blocks of stones and rocks? How long did it take to build mission San Gabriel? A rock falls for 4 seconds how far did it fall? When did Great stand on the Ugra river happen? Why did Walt Disney make a Cinderella 2? Which conditions are most likely to develop over a land area adjacent to the ocean on a hot sunny afternoon? What is the area of an equilateral triangle?