Extinction Definition and Causes Quiz
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Questions and Answers

What was the main factor leading to the extinction of the golden toad of Costa Rica?

  • Sea level rise
  • Lumbering
  • Predation by macaque monkeys
  • Reduced rainfall (correct)
  • Which factor contributed to the extinction of the blue pigeon on the island of Mauritius?

  • Competition for prey with macaque monkeys (correct)
  • Manufacturing
  • Greenhouse gas emissions
  • Overfishing
  • What is the estimated range of species that have gone extinct annually in recent years based on scientists' estimates?

  • 10,000 - 100,000 species
  • 500 - 1,000 species (correct)
  • 50 - 100 species
  • 1,000 - 10,000 species
  • What is one of the major human activities contributing to species extinction?

    <p>Building roads</p> Signup and view all the answers

    How much of the Earth's freshwater resources have been used by humans?

    <p>75%</p> Signup and view all the answers

    What percentage of oceans has been used for human development?

    <p>66%</p> Signup and view all the answers

    Which human-led activity contributes significantly to pollution and global warming?

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

    What percentage of pollution comes from greenhouse gas emissions?

    <p>5%</p> Signup and view all the answers

    What do scientists believe is the main reason the golden toad of Costa Rica went extinct?

    <p>Rising temperatures and reduced rainfall</p> Signup and view all the answers

    Which statement accurately reflects the impact of humans on extinction?

    <p>Pollution and habitat loss are major reasons for species facing extinction</p> Signup and view all the answers

    What could a third type of extinction, as mentioned in the text, be attributed to?

    <p>Climate change and human activities like deforestation</p> Signup and view all the answers

    Which human activity significantly affects land use and contributes to extinction?

    <p>Road construction and landfill dumping</p> Signup and view all the answers

    What percentage of Earth's freshwater resources have humans used, according to the information provided?

    <p>75%</p> Signup and view all the answers

    Which factor has not been a significant cause of species extinction according to the text?

    <p>Conservation efforts</p> Signup and view all the answers

    What is the estimated range of species that scientists believe have gone extinct annually in recent years?

    <p>200 - 2,000 species</p> Signup and view all the answers

    For what reason was the blue pigeon of Mauritius driven to extinction?

    <p>Competition with macaque monkeys for prey</p> Signup and view all the answers

    'Human activity and Extinction' is a subject of discussion mainly due to which factor?

    <p>'Human practices such as manufacturing'</p> Signup and view all the answers

    'Global warming and rising sea levels can partially be attributed to which human activity?'

    <p>'Greenhouse gas emissions'</p> Signup and view all the answers

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