The Mass of All the Known Asteroids Combined Would Be

question 16

Multiple Choice

The mass of all the known asteroids combined would be as much as

• A) half the mass of Earth.
• B) three times the mass of Earth.
• C) the mass of Mars.
• D) one-third the mass of the Moon.

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Definitions:

Electroencephalograph

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Memory-Enhancing Pill

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Independent Variable

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No-Pill Condition

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