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ENVS 1000 – Environmental Science – Winter 2015 Quiz11 – Alternative Energy Sources  1)Choose the energy source that is most renewable

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ENVS 1000 – Environmental Science – Winter 2015

Quiz11 – Alternative Energy Sources

 1)Choose the energy source that is most renewable.

 

1. 1. coal
   2. biodiesel
   3. oil
   4. natural gas
   5. nuclear

 

2. Which of the following electricity energy sources is least expensive for the consumer?

 

1. 1. fossil fuels
   2. solar
   3. wind
   4. geothermal
   5. nuclear

 

3. ___________________ energy is replenished over short time scales or is perpetually available.

 

1. 1. Sustainable
   2. Reusable
   3. Renewable
   4. Fossil fuel
   5. Non-renewable

 

4. How is a pressure water reactor different from a boiling water reactor?

 

1. 1. In a pressure water reactor, the steam that turns the turbine is not exposed to radiation.
   2. In a pressure water reactor, steam is produced in the reactor core itself.
   3. In a pressure water reactor, only the turbine is exposed to radiation during electricity production.
   4. In a boiling water reactor, the water heated by fuel rods is never exposed to the turbine.
   5. In a boiling water reactor, steam is produced outside the reactor core.

 

5. Radioactive tailings are created in which step of the nuclear fuel production?

 

1. 1. mining the ore
   2. milling
   3. enrichment
   4. fuel production
   5. decommission of nuclear plant

 

6. Where are spent fuel rods currently stored?

 

1. 1. in long-term storage locations
   2. in on-site in steel-lined pools
   3. in military waste disposal sites
   4. in underground in emptied magma chambers
   5. in developing countries

 

7. Nuclear energy is considered to be a “clean energy” because of all but which of the following?

 

1. 1. Sulfur dioxide is not produced.
   2. NO_x compounds are not released.
   3. Much less CO₂ (therefore, fewer greenhouse gases) are released.
   4. Particulates are not released.
   5. Less hot water is produced than by conventional power plants.

 

8. Why is water valuable in the production of nuclear energy?

 

1. 1. Water cools control rods.
   2. Water produces steam.
   3. Water prevents the reactor from over-heating.
   4. Both B and C 
   5. All of the above

 

9. Which renewable resource supplies more electricity to the human population than any other single renewable resource?

 

1. 1. solar
   2. wind C. geothermal

1. 4. biomass
   5. hydroelectric

 

10. How do run-of-the-river hydroelectric systems differ from large dams?

 

1. 1. They do not block all of the water flow but direct some water through a turbine.
   2. They literally “run” the river and take over the entire ecosystem.
   3. They flood an area to create a reservoir.
   4. They do not differ; they work the same way.
   5. They are built close to shorelines while dams can only be built farther inland.

 

 

 

11. Which of the following are documented negative impacts of dams?

 

1. 1. habitat destruction, alteration of river sediment deposition
   2. alteration of river salinity
   3. acid deposition
   4. increased atmospheric carbon dioxide and CFCs
   5. increased carbon monoxide emissions, decreased rainfall

 

12. ________________ energy is the heat stored underground, contained in either rocks or fluids.

 

1. 1. Wind
   2. Hydroelectric
   3. Biomass
   4. Geothermal
   5. Solar

 

13. What makes solar energy an unreliable energy source?

 

1. 1. Photovoltaic cells have a lot of moving parts that produce noise.
   2. Sunlight is intermittent, especially in high latitude locations.
   3. It has expensive start-up costs.
   4. Both B and C 
   5. All of the above

 

14. Which of the following is/are predicted to generate the most oil per acre in biodiesel production?

 

1. 1. algae
   2. switchgrass
   3. soybean
   4. poplar trees
   5. oil palms

 

15. _____________ is a term used to explain a biofuel disadvantage that reduces the contributions made from forests and grasslands to ecosystem services.
    1. Over-hauling

B.    Over-harvesting

1. 3. Over-producing
   4. Over-growing
   5. Over-grazing

 

 

 

16. Globally, food crops are being displaced by biofuel crops. Crops that normally were grown for either human or animal consumption are instead being grown for fuel. This switch has resulted in price increases and food riots. Which of the following crops has caused the most issues when switched from a food crop to a biofuel crop?
    1. Corn

 B.   wheat

1. 3. potato
   4. rice
   5. soybean

 

17. Which of the following is an advantage of using biofuel?
    1. All types have a higher energy content than fossil fuels, so less needs to be burned to produce the same amount of energy.
    2. Burning biomass directly produces minimal particulate matter pollution.
    3. If grown with minimal or no fossil fuel inputs, it is carbon neutral or negative.
    4. The most commonly grown biofuel crops consume far less water per kWh than what is used for traditional fossil fuels. E. None of the above.

 

18. Which term refers to the process where a plant absorbs carbon dioxide from the atmosphere and then stores carbon in its roots?

 

1. 1. carbon absorption
   2. carbon storing
   3. carbon loading
   4. carbon sequestration
   5. carbon release

 

19. What factors make wind energy imperfect as energy source?

 

1. 1. Wind is intermittent.
   2. Wind turbines are expensive to build.
   3. Wind turbines can create noise.
   4. Some people think turbines are an eyesore.
   5. All of the above

 

 

 

 

 

20. Although it is clear that alternative energy sources such as bioethanol and biodiesel are reducing fossil fuel usage, ___________ is also a key strategy to reducing our dependence on fossil fuels.
    1. desalination
    2. development of vertical farming
    3. conservation

D.    space exploration

      E.     offshore exploration