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

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

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

What percentage of oceans has been used for human development?

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

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

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

What percentage of pollution comes from greenhouse gas emissions?

<p>5% (C)</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 (A)</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 (B)</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 (A)</p> Signup and view all the answers

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

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

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

<p>75% (B)</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 (D)</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 (B)</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 (D)</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' (D)</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' (D)</p> Signup and view all the answers

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