Which of the Following Best Describes the Earth's Average Surface

question 70

Multiple Choice

Which of the following best describes the Earth's average surface temperature for the past 900,000 years?

• A) a steady warming trend
• B) fairly steady temperatures until recently
• C) many fluctuations of several degrees centigrade
• D) fairly steady with occasional cool spells
• E) fairly steady with a recent cooling trend

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Definitions:

Folds

Occur in various contexts, such as geology where they are bends in layered rocks, or in biology, as in the folding of proteins into complex structures.

Split Brain

A condition resulting from the severance or damage of the corpus callosum, leading to a lack of communication between the right and left hemispheres of the brain.

Corpus Callosum

The large band of neural fibers connecting the two hemispheres of the brain, facilitating interhemispheric communication.

Prefrontal Lobotomy

A surgical procedure once used to treat mental disorders, involving the removal or destruction of parts of the prefrontal cortex of the brain.