How big is the largest asteroid, Ceres, in comparison with the largest mare or impact basin on the Moon, Mare Imbrium?
A)Ceres is much larger than Mare Imbrium.
B)Ceres is much smaller, because asteroids are very small objects (1 km diameter), whereas maria are large (100-1000 km diameter).
C)The Mare Imbrium is much larger than Ceres.
D)Their size is very similar-about 1000 km across.

Question

Quizplus · Accepted Answer

Both Ceres and Mare Imbrium have a diameter of approximately 1000 km, making them roughly the same size.

How Big Is the Largest Asteroid, Ceres, in Comparison with the Largest