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Ninth Grade (Grade 9) Environmental Science Questions

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Grade 9 Environmental Science
The gradual buildup of pollutants in living organisms is called what?
  1. Biodiversity
  2. Bioaccumulation
  3. Keystone species
  4. Invasive species
Grade 9 Environmental Science
What was the human population of Earth in 2015?
  1. 3.7 billion
  2. 2.1 million
  3. 5.6 trillion
  4. 7.3 billion
Grade 9 Environmental Science
Coal is a byproduct of what?
  1. Diamonds
  2. Carbonized Plant Matter
  3. Decayed sea life
  4. Evaporites
Grade 9 Environmental Science
What "sphere" is inhabited by life?
  1. biosphere
  2. geosphere
  3. atomosphere
  4. hydrosphere
Grade 9 Environmental Science
Grade 9 Environmental Science
Grade 9 Environmental Science
What is peat?
  1. lignite formed by compaction
  2. a renewable resource used as fertilizer
  3. a tropical plant fossil
  4. lightly compressed mass of plant remains
Grade 9 Environmental Science
Where are the largest stores of carbon in the earth's carbon cycle?
  1. In the atmosphere
  2. Dissolved in water
  3. Sediment and sedimentary rock
  4. In oil and coal refineries
Grade 9 Environmental Science
Define the following term: fossil fuels.
  1. coal, oil, and natural gas
  2. sea water
  3. radioactive minerals
  4. gasoline and petroleum
  5. sunlight
Grade 9 Environmental Science
Grade 9 Environmental Science
Grade 9 Environmental Science
Which of the following is NOT an advantage of using fossil fuels?
  1. They are abundant and accessible.
  2. They produce carbon dioxide.
  3. They provide a great deal of energy.
  4. They are transported relatively easily.
Grade 9 Environmental Science
A scientist uses tree rings to study past climate conditions. She observes a series of rings that are thicker than average.

Which would be the best conclusion for the scientist to draw about the years associated with the thicker 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 9 Environmental Science
Which describes fossil fuel?
  1. any hydrocarbon used as fuel
  2. any resource used as fuel
  3. any chlorofluorocarbons used as fuel
  4. any riboflavin used as fuel
Grade 9 Environmental Science
Grade 9 Environmental Science
Grade 9 Environmental Science
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