Environmental Changes and Extinctions

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Questions and Answers

What is the estimated rate at which humans are destroying habitats such as rainforests for farmland?

  • 12000 km² per year
  • 8000 km² per year (correct)
  • 4000 km² per year
  • 10000 km² per year

What is a consequence of climate change on coral reefs?

  • They are unaffected
  • They are becoming more resilient
  • They are being destroyed (correct)
  • They are growing faster

How many species of freshwater fish became extinct in 2020?

  • 16 (correct)
  • 14
  • 12
  • 10

What is a reason why some species become extinct?

<p>They cannot adapt quickly enough to changes in their environment (B)</p> Signup and view all the answers

What is a consequence of pollution from factories and sewage on rivers and ocean environments?

<p>They are being destroyed (A)</p> Signup and view all the answers

What is a type of environment that is experiencing high extinction rates?

<p>Tropical habitats (A)</p> Signup and view all the answers

What is a consequence of climate change on biodiversity?

<p>It is leading to extinction of many species (A)</p> Signup and view all the answers

What is a reason why habitat destruction is a problem?

<p>It is leading to extinction of many species (D)</p> Signup and view all the answers

What is a consequence of extinction on ecosystems?

<p>It disrupts ecosystem services (C)</p> Signup and view all the answers

What is a reason why some extinction is important for life on earth?

<p>It is a natural process that maintains ecosystem balance (D)</p> Signup and view all the answers

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