Which of the Following Mass Extinction Events Is Correct

question 33

Multiple Choice

Which of the following mass extinction events is correct?

• A) During the Permian period over 90% of the species disappeared due to an excess of carbon dioxide in the atmosphere.
• B) At the end of the Ordovician period over 90% of the species went extinct due to a bolide impacting the Earth's surface and causing a cloud of ash to reduce solar exposure for several weeks.
• C) At the end of the Cretaceous period over 90% of the species went extinct due to a bolide impacting the Earth's surface and causing a cloud of ash to reduce solar exposure for several weeks.
• D) At the end of the Devonian period 70% of the terrestrial vertebrates went extinct when Gondwana drifted back towards the South Pole.

---

Definitions:

Good Performance

The act of achieving or exceeding the set standards of tasks or goals in a workplace or educational setting.

Performance Measures

Quantitative or qualitative indicators used to evaluate and track the efficiency, productivity, or success of an individual, team, or organization's outputs.

Deficient

Lacking in some necessary quality or element; insufficient or inadequate.

Contaminated

Refers to substances that are impure or polluted, often posing a risk to health or the environment.