7.1 Energy Choices and Security

Following aftermath of the Chernobyl accident in 1986, which statement below is true?

• All radiation has dissipated from the area.

• Chernoby is now a safe place to live.

• Some of the radiation has dissipated but some still remains in the area.

• The radiation leak from Chernobyl was well contained.

Which one of the following statements about coal is correct?

• On combustion, coal is the most polluting fossil fuels.

• Coal is comprised of only carbon.

• Coal is found in every country in the world.

• Burning of coal produces no residues.

Which of the following statements about geothermal power is NOT true?

• Use of geothermal power produces no emissions.

• Use of geothermal power is expensive to set up.

• Geothermal power can be used to heat buildings.

• Geothermal electricity generating plants have relatively low operating costs.

Which is the largest hydro-electric dam scheme in the world?

With reference to the table below, calculate the percentage of energy in the USA that came from non-renewable sources of energy in 2014.

• 36%

• 78%

• 45%

• 95%

With reference to the table below, which of the following countries is the largest importer of energy?

• Russia

• India

• China

• USA

El Niño events contribute to which of the following?

• Increased upwelling in the Eastern Pacific ocean.

• More rainfall in Australia.

• Reduced upwelling in the Eastern Pacific ocean.

• Drier weather conditions in South America.

Name the model used to describe transfer of heat through the atmosphere.

Impacts of climate change is most likely to include which of the following?

• Overall increase in global fisheries.

• Overall global increase in pests.

• Overall increase in global drinking water supplies.

• Overall increase in global crop production.

Changing environmental conditions as a consequence of climate change will lead to which of the following?

• Movement of species to lower altitudes.

• Movement of species towards the west.

• Movement of species towards the poles.

• Movement of species towards the equator.