Oceania Geography and Environmental Changes
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Questions and Answers

What is the approximate amount of land in square miles that Oceania collectively has?

  • Over 1 million
  • Over 3 million (correct)
  • Over 2 million
  • Over 4 million

    • How much have global sea levels risen in the last century?

  • 15 centimeters (correct)
  • 20 centimeters
  • 25 centimeters
  • 10 centimeters

    • What percentage of Australia's population resides in coastal regions?

  • 85% (correct)
  • 80%
  • 75%
  • 90%

    • What is happening to the wetlands due to rising sea levels?

    <p>They are becoming flooded with sea water</p> Signup and view all the answers

    What is causing the massive loss of diversity in marine life?

    <p>Warming water</p> Signup and view all the answers

    What is happening to the land in coastal regions?

    <p>It is being eroded</p> Signup and view all the answers

    What is the main factor driving the geographical changes affecting Oceania?

    <p>Human action</p> Signup and view all the answers

    What is the primary source of food and industry for many inhabitants of Oceania?

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

    What is the main cause of the degradation of the Great Barrier Reef?

    <p>Fertilizer runoff and increased water temperatures</p> Signup and view all the answers

    How many species of fish are found in the Great Barrier Reef?

    <p>1,625</p> Signup and view all the answers

    What percentage of Australia's natural vegetative cover has been cleared?

    <p>13%</p> Signup and view all the answers

    What is a result of vegetation clearing in Australia?

    <p>Increased greenhouse gas emissions</p> Signup and view all the answers

    What type of habitat is created when vegetation is cleared?

    <p>Edge habitat</p> Signup and view all the answers

    What is a consequence of soil salinity in Australia?

    <p>Farming becomes difficult</p> Signup and view all the answers

    Which of the following invasive species is mentioned in the text as inhabiting cleared vegetation?

    <p>Coral trees</p> Signup and view all the answers

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