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Answer the following using information discussed in class and your own independent research. What is the source of all fresh water on Earth? Where does fresh water’s “journey” start? How does fresh water get to the sea? What is the highest waterfall in the world and where is it located? What are some characteristics of the beginning of a river? How does this differ from its downstream characteristics? What adaptations do animals at the top of a river need to live there? Why? What do rivers do to landscapes? Write a paragraph describing a specific example of a river that shaped a particular landscape. What happens to rivers as they leave the mountains? Give an example of a river predator. Why are slower rivers brown? Why is this significant? Think back to Chapter 4 and the section on evolution – write a paragraph giving a possible explanation for the evolution of all the different varieties of ciclid fish in Africa. Which is the world’s largest lake? Where is it located? Describe its properties. Which is the world’s largest river? Where is it located? Describe its properties. Give an example of a fresh water food chain.Think about what you have learned about estuaries – write a paragraph that describes what makes these such productive ecosystems.
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