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Eighth Grade (Grade 8) Environmental Science Questions

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Grade 8 Environmental Science
Which of these could help to reduce air pollution?
  1. recycling
  2. mining
  3. burning fossil fuels
  4. driving a car
Grade 8 Environmental Science
Grade 8 Environmental Science
What is ozone?
  1. A form of oxygen
  2. The middle zone of the atmosphere
  3. The coldest layer of the atmosphere
Grade 8 Environmental Science
Which of the following is NOT an alternative energy resource?
  1. fossil fuels
  2. geothermal energy
  3. solar energy
  4. hydroelectric energy
Grade 8 Environmental Science
Grade 8 Environmental Science
One possible result of more carbon dioxide in the atmosphere is
  1. more nitrogen in the nitrogen cycle.
  2. more carnivores in an area.
  3. increase in rainfall in a region.
  4. increase in average atmospheric temperature.
Grade 8 Environmental Science
Grade 8 Environmental Science
Energy sources such as wind, hydroelectric, and geothermal are similar in that
  1. they are renewable.
  2. they are clean energy -- no gas emissions.
  3. reduce our dependence on fossil fuels.
  4. all of the above
Grade 8 Environmental Science
How does nonpoint source pollution reach bodies of water?
  1. by run-off
  2. by water treatment
  3. by evaporation
  4. by condensation
Grade 8 Environmental Science
Unlike fossil fuels, biomass
  1. consists of inorganic compounds.
  2. is a major source of worldwide energy.
  3. emits no carbon dioxide when burned.
  4. is considered a renewable resource.
Grade 8 Environmental Science
Grade 8 Environmental Science
Sunlight is considered to be
  1. the cause of global warming.
  2. the cause of acid rain.
  3. a renewable resource.
  4. a nonrenewable resource.
Grade 8 Environmental Science
Grade 8 Environmental Science
What is recycling?
  1. using old materials to make new ones
  2. deposit of useful minerals
  3. energy from the Sun
  4. thick black liquid used for energy
Grade 8 Environmental Science
Grade 8 Environmental Science
Hydroelectric energy is
  1. produced from waste.
  2. produced from gas.
  3. produced by water.
  4. produced from fire.
Grade 8 Environmental Science
A fossil fuel is
  1. a rock that contains at least 50% plant and animal remains.
  2. fuel that formed from the remains of plants and other organisms that were buried and altered over millions of years ago.
  3. sediment that has been compacted many times.
  4. metamorphic rock.
Grade 8 Environmental Science
The United States' primary source of electrical energy is generated by
  1. falling water.
  2. burning fossil fuels.
  3. the wind.
  4. burning biomass.
Grade 8 Environmental Science
Plants, wood, and animal waste are all examples of
  1. inorganic matter.
  2. fossil fuels.
  3. biomass.
  4. nonrenewable resources.
Grade 8 Environmental Science
What is the order of how to treat drinking water?
  1. first filtration, coagulation, settling basins, second filtration, chlorination, aeration, additional treatment
  2. first filtration, settling basins, aeration, additional treatment, chlorination, coagulation, second filtration
  3. first filtration, aeration, second filtration, additional treatment, settling basins, coagulation, chlorination
  4. first filtration, second filtration settling basins, aeration, coagulation, additional treatment, chlorination
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