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Eighth Grade (Grade 8) Environmental Science Questions

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Grade 8 Environmental Science
CFCs, HCFCs, and halons come from all of the below, except
  1. air conditioners.
  2. refrigerators.
  3. spray cans.
  4. garbage.
  5. computers.
Grade 8 Environmental Science
Nitrogen oxides from burning gasoline turn to this when they mix with water vapor in the atmosphere.
  1. Sulfur dioxide
  2. Sulfuric acid
  3. Nitric oxide
  4. CFCs
Grade 8 Environmental Science
Which statement best describes a benefit of using alternative resources?
  1. It reduces the amount of fossil fuels that must be used.
  2. It reduces the amount of renewable resources used.
  3. It repairs the ozone layer.
  4. All of the above
Grade 8 Environmental Science
Which of the following are natural resources found in the atmosphere?
  1. wind
  2. breathable air
  3. water (as rain)
  4. all of the above
Grade 8 Environmental Science
It would take a glass bottle about                 years to decompose.
  1. one hundred
  2. one thousand
  3. one million
Grade 8 Environmental Science
What is the main problem that prevents geothermal energy from being widely used?
  1. Using geothermal energy contaminates the surrounding countryside with radioactive waste.
  2. Geothermal energy is only available in tropical countries.
  3. The technology for using geothermal energy to make electricity has not yet been developed.
  4. For geothermal energy to work, a hot underground water source must be available.
Grade 8 Environmental Science
Which statement best describes Earth's global distribution of natural resources?
  1. Natural resources are distributed evenly around Earth because natural formation processes occur at the same rate everywhere.
  2. Natural resources are distributed unevenly around Earth because natural formation processes occur at the same rate everywhere.
  3. Natural resources are distributed evenly around Earth because natural formation processes occur at different rates depending on location and conditions.
  4. Natural resources are distributed unevenly around Earth because natural formation processes occur at different rates depending on location and conditions.
Grade 8 Environmental Science
A scientist uses tree rings to study past climate conditions. She observes a series of rings that are thinner than average.

Which would be the best conclusion for the scientist to draw about the years associated with the thinner tree rings?
  1. The climate was cool and dry during those years.
  2. The climate was cool and wet during those years.
  3. The climate was warm and dry during those years
  4. The climate was warm and wet during those years.
Grade 8 Environmental Science
Oil is a fossil fuel and major energy resource worldwide. Yet, over half of the world's oil reserves are located in the Middle East. Which best explains why over half of the world's oil reserves are isolated to the Middle East?
  1. The governments of the Middle East have invested more time and money in locating oil sources than other nations.
  2. Today’s oil formed millions of years ago and only in locations where environmental conditions allowed for organic matter to transform into oil.
  3. Oil was evenly distributed around Earth, however, other nations extracted and used it for energy at a faster rate than by the Middle East nations.
  4. Environmental conditions in the Middle East are ideal for oil formation, which allows oil to replenish at a faster rate than in other parts of the world.
Grade 8 Environmental Science
What powered Nolan's steam engine?
  1. Heat from the Sun boiling the water
  2. Fire underneath the boiler boiling the water
  3. Electricity turning the generator
  4. Geothermal energy
Grade 8 Environmental Science
A factory where crude oil is made into other fuel products.
  1. reactor
  2. refinery
  3. hydroelectric
  4. station
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