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1. How does the average American’s ecological footprint compare to those of other countries? What is the problem with having so much stuff? How can American’s become more sustainable? Explain (15 points)
2. Using gasoline in your car, explain potential and kinetic energy. (10 points)
3. What type of feedback loop does the predator prey relationship create? Explain one example of how humans have offset the balance of this feedback loop? (5 points)
4. What is the basis of energy in a system (who makes the energy and how)? Why should humans eat less meat? (10 points)
5. Why are forests important to the stability of the Earth’s climate? (10 points)

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