Mercury, Unlike the Moon, Has Large Crater-Filled Plains Rather Than

question 254

Multiple Choice

Mercury, unlike the Moon, has large crater-filled plains rather than maria. The reason is thought to be that

• A) Mercury had no large low-lying regions that could be filled in by lava.
• B) Mercury's interior lacks the raw material for lava.
• C) because of its large iron core, Mercury has a thinner mantle and therefore has fewer craters produced by volcanoes.
• D) Mercury is closer to the Sun and did not receive as many crater-forming impacts as the Moon.

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Definitions:

Variable on the Horizontal Axis

Refers to the independent variable in a graph that is plotted along the horizontal or x-axis and determines the values of other variables.

Slope

A measure of the steepness or incline of a line, indicating the rate at which values change along the line.

Positive Slope

A line or curve on a graph that moves upward from left to right, indicating a positive relationship between two variables.

Increasing

A process or trend characterized by a growth or rise in quantity, size, or significance.