Evolution of Plants in Coastal Swamp Forests
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Questions and Answers

Why were thick coal deposits not found in coastal deposits and deltas that formed during earlier times?

  • The coastal swamps were too shallow to support the growth of coal-forming plants.
  • There was excessive volcanic activity that prevented the formation of coal deposits.
  • The climatic conditions were not suitable for the formation of coal deposits.
  • The plants that produced enough biomass to form large peat deposits had not yet evolved. (correct)

    • What led to the decrease in carbon dioxide (CO2) concentrations during the Carboniferous period?

  • Extensive deforestation and land use changes
  • Intense solar radiation leading to CO2 breakdown
  • Rapid ocean acidification due to increased volcanic activity
  • The growth of continental glaciers caused by global cooling (correct)

    • What has contributed to the reversal of the carbon dioxide removal process in recent times?

  • Large-scale deforestation leading to reduced biomass production
  • Significant reduction in industrial emissions and human activities
  • The exploitation of large reserves of coalbed methane (correct)
  • Increased volcanic activity releasing stored CO2 from the Earth's crust

    • What is the purpose of using a well in a coal seam?

    <p>To capture methane gas from the coal seam</p> Signup and view all the answers

    Which of the following is an example of renewable energy mentioned in the text?

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

    What type of materials are burned to generate energy in biomass plants?

    <p>Organic materials like wood and agricultural waste</p> Signup and view all the answers

    Why is methane vented during coal mining?

    <p>To prevent the build-up of methane which can cause explosions in mine shafts</p> Signup and view all the answers

    What determines whether methane within the coal fractures may be trapped in the coal?

    <p>The level of water pressure in the coal seam aquifer</p> Signup and view all the answers

    How is coalbed methane extracted?

    <p>By removing water from the coal using a well</p> Signup and view all the answers

    What caused the decline in production rates for coalbed methane in recent years?

    <p>Increase in shale gas methane production</p> Signup and view all the answers

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