Environmental Systems 1st 6 - Part 2

The combustion of coal releases sulfur dioxide into the atmosphere. Why is sulfur dioxide an environmental problem?

• Sulphur dioxide pollutes waterways.

• Sulphur dioxide is a harmful pesticide.

• Sulphur dioxide causes acid rain.

Nuclear fission occurs when—

(Hint - Neutron and Uranium, Split)

• a neutron collides with the nucleus of a hydrogen atom and the nucleus splits apart.

• an electron collides with the nucleus of a uranium atom and the nucleus splits apart.

• a neutron collides with the nucleus of a uranium atom and the nucleus fuses with the neutron.

• a neutron collides with the nucleus of a uranium atom and the nucleus splits apart.

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If coal, oil, and natural gas reserves became so low in the year 2020 that it was no longer economically feasible to extract them for energy, what would be the most likely outcome?

• The greenhouse gas effect would cease within 5 years and the climate would begin to cool.

• Globally, the cost and energy efficiency of electricity and fuel would decrease slightly.

• Renewable energy use would increase and greenhouse gas emissions would decrease.

• Renewable energy use would decrease and greenhouse gas emissions would increase.

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How many kWh does a 5000 watt central air conditioner use in one day?

• 5

• 120,000

• 120

• 5,000

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All of the following statements are true about ALL non-renewable energy resources except—

• Non-renewable energy resources pose considerable threats to human health.

• Finite amounts of each non-renewable energy resource exist on Earth.

• It would take millions of years for the earth to create additional non-renewable resources.

• The extraction and use of non-renewable energy resources produces carbon dioxide.

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Which of the following energy transformations takes place in the generator found inside a turbine of a thermal power plant?

• Mechanical energy to electrical energy

• Chemical energy to thermal energy

• Thermal energy to electrical energy

• Electrical energy to mechanical energy

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Many environmentalist argue that nuclear power is more environmentally sustainable than fossil fuels. Which piece of evidence best supports this argument?

• The combustion of fossil fuels contributes fewer greenhouse gases to the atmosphere than nuclear power.

• Uranium is a naturally-occuring, renewable energy source and, unlike fossil fuels, it will not run out.

• Nuclear power contributes far fewer greenhouse gases to the atmosphere than fossil fuels.

• Nuclear power poses a significantly lower threat to human health than fossil fuels.

Three-Mile Island, Chernobyl and Fukushima are all examples of—

• Coal power plants

• Nuclear disasters

• Greenhouse gases

• Devastating tsunamis

Rank the following energy resources in the correct order from highest carbon dioxide emissions to lowest carbon dioxide emissions:

• Oil, coal, natural gas, nuclear fission

• Coal, oil, natural gas, nuclear fission

• Natural gas, nuclear fission, oil, coal

• Coal, nuclear fission, oil, natural gas

Which statement(s) accurately describe concerns about the continued use of fossil fuels?

• I, III, and IV only

• II and IV only

• I only

• I, II, III, and IV

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