Oxygen Built Up in the Atmosphere Approximately 2 Billion Years

question 41

Multiple Choice

Oxygen built up in the atmosphere approximately 2 billion years ago and

• A)occurred due to carbon dioxide being split by lightning strikes.
• B)could not have occurred without the oxygen coming from outer space.
• C)destroyed ozone forming more oxygen.
• D)helped to form the ozone layer that is so important to life today.
• E)occurred because aerobic organisms required the oxygen.

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Definitions:

Identity Politics

A type of politics in which groups of people having a particular racial, religious, ethnic, social, or cultural identity seek to promote their own specific interests or concerns without regard to the interests or concerns of any larger political group.

Social Movements

Organized collective efforts by people to promote or resist change in society, often aiming at social reform or revolution.

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An intellectual movement that explores the representation of gender and sexuality, challenging traditional categories and norms.

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An intellectual stance rejecting the view of humanity as the central and most significant entity in the universe, often focusing on technology, ecology, and artificial intelligence.