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  The term sustainability refers to keeping the ______ ________ and _____ _______ in a happy, healthy and in a _________ state

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1. The term sustainability refers to keeping the ______ ________ and _____ _______ in a happy, healthy and in a _________ state.
2. The current use of _____ _____ versus the need to develop new _______ energy sources is an example of how short?term _____ are in opposition to long?term __________.
3. Sustainable development involves reducing ______, increasing _______, and using ________ energies.
4. _________ protection can positively affect local economies by creating ___ that will attract ______ from other sectors of the economy.
5. An important way to alter the perception that protecting the environment is incompatible with economic progress is through _______ and _______.
6. Courses in environmental science or sustainable living are ______ in educating students about sustainable _______ to global problems.
7. Which of these is NOT a benefit of solar energy?
   A) It is quiet, but requires maintenance of its moving parts.
   B) It allows local, decentralized control over power.
   C) It decreases environmental and social stress.
   D) It does not emit greenhouse gases.
8. Which energy source has doubled every three years and its cost of electric production is almost as cheap as fossil fuels?
9. When would geothermal energy NOT be renewable?
   a) When the Earth cools down
   b) When too much salt is put into the substance holding the hot water
   c) When too much hot water is extracted
   d) Never, geothermal energy can not be depleted
10. What is a major drawback of hydrogen fuel?
    A) It could pollute if facilities are built too large.
    B) It could pollute if fossil fuels are used to produce the hydrogen.
    C) There is a slight danger of causing earthquakes during production.
    D) People will never want to use it.