What Do the Changing Percentages of Various Gases in the Atmosphere

question 128

Multiple Choice

What do the changing percentages of various gases in the atmosphere indicate about mechanisms that control the composition of the atmosphere?

• A)The changes indicate that the composition of gases is totally controlled by the amount and type of gases given off during volcanic eruptions.
• B)The changes indicate that the composition of gases is totally controlled by the composition of comets and meteors that strike Earth.
• C)The changes indicate that the composition of gases is to a significant extent controlled by biological processes occurring on Earth.
• D)The changes indicate that the composition of gases is exclusively controlled by chemical reactions between sunlight and the gases in the atmosphere.

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Definitions:

Vicarious Learning

Learning that occurs by observing the behaviors of others and the outcomes of those behaviors.

Insects

A vast group of arthropods characterized by a chitinous exoskeleton, a three-part body (head, thorax, abdomen), three pairs of jointed legs, compound eyes, and one pair of antennae.

Law of Effect

A principle in behaviorism stating that responses followed by satisfaction will become more likely to occur, and those followed by discomfort will become less likely.

Classical Conditioning

A method of learning in which two stimuli are regularly paired; a response that is initially caused by the second stimulus is eventually caused by the first stimulus alone.