Concordia University

PHYS 273

LESSON 4

1)Most countries depend on fossil fuels for more than 50% of their energy needs. T OR F

2. What percentage of Canada’s energy consumption is in the form of fossil fuels

2. 1. almost zero
   2. about 25%
   3. about 50%
   4. about 75%
   5. almost all
3. Using Sankey diagram: which of the following is not a main use of energy produced by nat- ural gas?

1. 1. Residential
   2. Commercial
   3. industrial
   4. transport

4. Energy use per person is much higher

1. 1. in high developed countries
   2. in less

5. Fossil fuels are not renewable resources because

5. 1. they are bad for environment
   2. take 100s millions years to produce
   3. are hard to extract from Earth
   4. cause too many emissions
6. In North america, since 2005, natural gas consumption has:

1. 1. increased b.plateaued
   2. decreased

7. how is the majority of electricity produced in Canada?

7. 1. Hydro
   2. Coal
   3. Uranium
   4. Solar
8. In the last 30 years South Asia has not seen a large increase in % of energy coming from fossil fuels. T OR F