How have humans changed the oceans?

What is the largest lake in Cameroon? Which is the second largest river in Egypt? What are the major rivers of Canada? When did fermin lasuen come from? When was Coen Tunnel created? Do rivers usually flow to the ocean or away from the ocean? Where is the John W Inzer Museum Inc in Asheville Alabama located? When was The Great Space Coaster created? Is coconut oil the same as palm oil? How many species become extinct due to deforestation? Atlantic Ocean North Sea Mediteraniean Sea and Black Sea how did the influence life in medieval Europe? If you are drilling a hole in a wall with an electric hand drill then what action will make the hole be drilled faster? The challenges Charles Lindbergh had to endure during the flight when solo across the Atlantic Ocean successfully in early 1927? What river makes up part of Botswana's border? Why do people use monorails in theme parks and zoos? What City is located near the Limpopo river? Why are marshes more productive than the bogs? How deep is the Savannah River? What kind of activities can a person do at Lake Wanaka? What is the pressure in the euphotic zone?