An Early Consequence of the Release of Oxygen Gas by Plant

question 48

Multiple Choice

An early consequence of the release of oxygen gas by plant and bacterial photosynthesis was to

• A) generate intense lightning storms.
• B) change the atmosphere from oxidizing to reducing.
• C) make it easier to maintain reduced molecules.
• D) cause iron in ocean water and terrestrial rocks to rust (oxidize).
• E) prevent the formation of an ozone layer.

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Definitions:

Rising Rates

An increase in the occurrence or level of a specific phenomenon over a given period.

AIDS

Acquired Immunodeficiency Syndrome, a life-threatening condition caused by the human immunodeficiency virus (HIV) which severely damages the immune system.

Virus

A microscopic infectious agent that replicates only inside the living cells of other organisms and can cause diseases.

Caused

Refers to something that brings about an effect or result, indicating a relationship where one event is the reason something else happens.