Exercise 1.11 Questions 1-10 13 and 14. Page 37

1. coal, oil and gas.
2. solar, wind and hydro- electricity.
3. the concern for the environment and global warming.
4. India, Australia, China, America.
5. 76 billion tonnes.
6. $4 billion
7. the solar power plant will be built in Mildura, Victoria. it will cover 0.8 square kilo meters.
8. wind turbines and windmills.
9. advantages         
 provides energy for 18,000 homes. reduces greenhouse gases. will hold 23 turbines.
disadvantages
will last for 25 years. costs lots of money, very noisy and will disturb farmers. ruins views of the country.
10. they give off no greenhouse gases and are good for the environment.
13. it disperses like air to major cities. 
14a. coal- $17 billion       Gold- $6 billion          wool - $3 billion
 14b. coal - $25 billion     gold - $& billion        wool - $4 billion
14c. coal.