Concordia University

PHYS 273

LESSON 5

1)Which of the following is a form of coal surface mining?

 

1. 1. Strip mining
   2. They are all forms of coal surface mining
   3. open-pit mining
   4. Mountaintop removal mining
2. Compared with other countries, where does Canada place in terms of proved oil reserves?

 

1. 1. 1st
   2. 3rd
   3. 7th
   4. 5th

 

3. Approximately how many mining fatalities were there in the US in 20th century?

 

 

a. 100 000

b. 100

c. 1000

d. 10 000

 

 

 

 

4. In NA, the % of energy used that comes from fossil fuels is increasing. T OR F

 

 

5. Which of the following is NOT an advantage of oil over coal?

 

1. 1. Oil is easier to transport.
   2. Oil is the most abundant fossil fuel.
   3. Oil is more versatile.
   4. Oil is cleaner burning.

 

6. What fraction of the coal produced in Canada is used to produce electricity domestically?

 

a. 75%

b. 25%

c. 50%

d. non

7. Which of the following is NOT a factor that will decrease the amount of time that the world’s oil supply might last?

 

7. 1. We will not discover new oil reserved in the future
   2. demand is increasing faster than the growth of alternative energy
   3. World energy demand is incresing
   4. Most oil reserved are in decline
8. When petroleum products are refines they get separated according to:

 

8. 1. their viscosities
   2. Densities
   3. boiling points
   4. colours
9. Compared to other fossil fuels, natural gas released more harmful combustion products. T OR F

 

 

 

10. Which two countries contain about half of the world’s known natural gas reserves?

 

1. 1. China & USA
   2. Russia & Iran
   3. Russia & USA
   4. Russia & Canada