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 (C)</p> Signup and view all the answers

What does net primary productivity measure?

<p>Stored chemical energy generated by a plant community (D)</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 (A)</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 (B)</p> Signup and view all the answers

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

<p>Ecosphere (B)</p> Signup and view all the answers

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

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

What is the primary reserve for the carbon cycle?

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

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

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

"Net photosynthesis" refers to the:

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

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

<p>Phytoplankton photosynthesis (B)</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 (A)</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 (A)</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 (B)</p> Signup and view all the answers

What are Canada's ecozones primarily based on?

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

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ecosystem in environment.pptx

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