How many polluted lakes are there in the world?

What does the equator have to do with rainforests climate? What river flows though the carpathian mountains? What famous type of snake is found in the Amazon? What is the Greek word for bridge? What two forces through ocean waves cause erosion? Who was considered China's Great Thinker? What is the narrow strip of water between two islands called? What is the second wonders of the world? How do they stop a roller coaster? What national parks are located in a desert region? When was Cahokia built? Why do eyptations cCELEBRATE l the nile flooding? What will happen if algae sink at the bottom of the ocean where no sunlight could reach? What is the poem on statue of liberty called? Where does desert sage grow? Is the Tanami Desert a hot or cold desert? Why do Rocky Mountains have sharp peaks? Does the Ohio river connect to the great lakes? What types of goods did people take in their caravans across the desert? Is tenochtitlan located in a lake or ocean?