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c. natural gas.
d. petroleum.
5. An example of renewable source of energy is
a. oil.
b. coal.
c. natural gas.
d. solar energy.
Subjective Questions:
1. If you could use any source of energy for heating your food, which one would you
use and why?
2. Why are we looking at alternate sources of energy?
3. Hydrogen has been used as a rocket fuel. Would you consider it a cleaner fuel than
CNG? Why or why not?
4. Why are thermal power plants set up near coal fields?
5.What are the disadvantages of fossil fuels?
