Earth's Layers and Atmosphere
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Questions and Answers

What is the Earth's outer layer known as?

  • Biosphere
  • Exosphere
  • Ecosphere (correct)
  • Atmosphere
  • Which layer of the Earth's atmosphere contains about 99% of water vapor?

  • Troposphere (correct)
  • Stratosphere
  • Thermosphere
  • Mesosphere
  • What is the main area in the Earth's atmosphere where ozone is found?

  • Mesosphere
  • Troposphere
  • Stratosphere (correct)
  • Thermosphere
  • Which type of energy is dispersed at low temperatures and considered low-quality energy?

    <p>Heat energy</p> Signup and view all the answers

    What does net primary productivity measure?

    <p>Stored chemical energy generated by a plant community</p> Signup and view all the answers

    According to the Laws of Thermodynamics, what does the Law of Entropy state?

    <p>Usable energy quality decreases during energy transformations</p> Signup and view all the answers

    Which of the following is considered a limiting growth factor for plants?

    <p>Competition from other plants and animals</p> Signup and view all the answers

    Which layer of the Earth contains the core, mantle, and outer layer?

    <p>Ecosphere</p> Signup and view all the answers

    In the context of biogeochemical cycles, which elements are involved in gaseous cycles?

    <p>Carbon and hydrogen</p> Signup and view all the answers

    What is the primary reserve for the carbon cycle?

    <p>Fossil fuel reserves</p> Signup and view all the answers

    Which of the following is an abiotic component of an ecosystem?

    <p>Water availability</p> Signup and view all the answers

    "Net photosynthesis" refers to the:

    <p>Difference between photosynthesis and respiration energy loss</p> Signup and view all the answers

    What is the main source of CO2 absorption mentioned in the text?

    <p>Phytoplankton photosynthesis</p> Signup and view all the answers

    Which process leads to excessive CO2 levels that can affect plankton, corals, and other organisms?

    <p>Combustion of fossil fuel</p> Signup and view all the answers

    What is the primary reason for the increase in human contribution to carbon levels since the 1950s?

    <p>Combustion of fossil fuels</p> Signup and view all the answers

    Which biome is defined as a group of dominant plants and animals based on vegetation and adaptations?

    <p>Forest biome</p> Signup and view all the answers

    What are Canada's ecozones primarily based on?

    <p>Climate conditions</p> Signup and view all the answers

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