The Paleoproterozoic Buildup of Atmospheric Oxygen Resulted in

question 20

Multiple Choice

The Paleoproterozoic buildup of atmospheric oxygen resulted in

• A) resumed deposition of banded-iron formations.
• B) deposition of limestones with isotopically heavy carbon.
• C) oxidation of vast amounts of organic carbon.
• D) climatic change that brought on "snowball Earth."

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Definitions:

Death Instinct

A psychoanalytic concept suggesting that individuals possess an unconscious wish to die or self-destruct, counterbalanced by life-sustaining instincts.

Psychodynamic Approach

A psychological perspective that emphasizes the influence of the unconscious mind on behavior, as well as the dynamics of interpersonal relationships.

Thanatos

In Freudian psychoanalysis, a drive towards death or self-destruction, often contrasted with the life instinct, Eros.

Evolutionary Social

An approach in social science that examines social behaviors through the lens of evolutionary theory and principles.