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.

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Definitions:

Nationalistic Differences

Highlight the distinguishing beliefs, values, and practices that stem from strong identification with one's nation, leading to variations among countries.

Post-Marxian Theory

Intellectual frameworks and critiques that evolve from or react to Marxist theory, while diverging in methods or goals.

Neo-Marxian Theory

A modern reinterpretation of Marxist thought, focusing on issues of culture, ideology, and power, and expanding on classical Marxist analysis of economic structures and class struggle.

Poststructuralism

An intellectual movement critical of the universalizing tendencies of structuralism, emphasizing the fluidity of meaning and the importance of power relations in the production of knowledge and social identities.