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Eighth Grade (Grade 8) Environmental Science Questions

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Grade 8 Environmental Science

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Acid rain is formed when
  1. fossil fuels are dumped in large bodies of water, like rivers.
  2. fossil fuels react with pollutants that are called oxides.
  3. oxides of fossil fuels react with water vapor in the atmosphere.
  4. rain does not fall for a very long period.
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
Geothermal energy is using energy from the wind.
  1. True
  2. False
Grade 8 Environmental Science
Which of the following is NOT a natural cause of water pollution?
  1. Algae blooms
  2. Animal waste
  3. Pesticides
  4. Silt from storms
Grade 8 Environmental Science
Over the past 100 years, which of the following has been most impacted by human activity?
  1. movement of tectonic plates
  2. atmospheric composition
  3. number of tsunamis
  4. volcanic activity
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
Grade 8 Environmental Science
Coal is used primarily in the United States to generate                .
  1. kerosene
  2. gasoline
  3. electricity
  4. plastics
Grade 8 Environmental Science
A disadvantage of a wind farm is
  1. it uses a renewable energy resource.
  2. it does not produce air polluting gases.
  3. it produces less energy when winds are weak.
  4. it does not need to be imported from other countries.
Grade 8 Environmental Science
Sulfur dioxide turns to this after it mixes with water vapor in the atmosphere.
  1. Carbon dioxide
  2. Sulfuric acid
  3. Iron oxides
  4. HCFCs
Grade 8 Environmental Science
As local populations grow, what can happen to an aquifer?
  1. More and more water is drawn from the aquifer
  2. Pollution of the aquifer increases
  3. Water levels decrease
  4. All of the above
Grade 8 Environmental Science
Why would a person add manure to the soil?
  1. Manure gives plants needed nitrogen.
  2. Manure gives plants needed carbon dioxide.
  3. Manure pollutes the water cycle.
  4. Manure makes the yard smell better.
Grade 8 Environmental Science
By which exposure route does smog most negatively affect a person’s body?
  1. eating
  2. drinking
  3. breathing
  4. skin contact
Grade 8 Environmental Science
Another name for smog is                       .
  1. global warming
  2. chlorofluorocarbon
  3. ground-level ozone
  4. high atmospheric ozone
Grade 8 Environmental Science
How does grazing affect soil?
  1. Overgrazing can leave soil vulnerable to wind and water erosion.
  2. Grazing can be used in place of plowing in no-till farming.
  3. Grazing can improve soil quality due to organic matter that livestock leaves behind.
  4. All answers are correct.
Grade 8 Environmental Science
Automobiles produce this when they burn gasoline.
  1. carbon dioxide
  2. acid rain
  3. nitrogen oxides
  4. ozone
Grade 8 Environmental Science
During which season are smog concentrations generally greatest?
  1. spring
  2. summer
  3. autumn
  4. winter
Grade 8 Environmental Science
The place where nuclear fission takes place in a nuclear power plant.
  1. reactor
  2. refinery
  3. office
  4. cooling tower
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