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Essay Question:

List and briefly describe all of the previous 5 mass extinctions. Based on the definition of a mass extinction and information presented in class/readings about our current extinctions, create an argument as to whether or not we are in the midst of a sixth mass extinction.


Sagot :

Final answer:

Brief description of previous 5 mass extinctions and explanation of the sixth mass extinction due to human activities.


Explanation:

Mass Extinctions in Earth's History

Five previous mass extinctions:

  1. Ordovician-Silurian Extinction: Occurred around 443 million years ago due to glaciation.
  2. Devonian Extinction: Happened around 360 million years ago, possibly due to climate change.
  3. Permian-Triassic Extinction: Largest mass extinction about 252 million years ago, probably due to volcanic activity and climate change.

Current Scenario: The sixth mass extinction attributed to human activities, resulting in alarming extinction rates compared to natural rates. Conservation efforts are crucial to prevent further loss of biodiversity.


Learn more about Mass Extinctions here:

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