The Size of the Largest Asteroid, Ceres, Compared with the Largest

question 123

Multiple Choice

The size of the largest asteroid, Ceres, compared with the largest mare or impact basin on the Moon, which covers about one-quarter of the Moon's face, is

• A) not comparable because all asteroids are very small objects (1 km diameter), whereas most maria are large (100-1000 km diameter).
• B) much smaller, only about 1/3 the size.
• C) very similar, about 1000 km across.
• D) much larger, by a factor of more than 2.

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