Digital ACT Science Practice Question #1223
Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.
Most craters + most weathered = oldest (Z). Fewest craters + least weathered = youngest (Y) $\rightarrow$ Choice A.
Under constant bombardment, older surfaces accumulate a greater density of impact craters and experience more cumulative mineral weathering (lower percentage of intact olivine). Crater Z has the highest crater density (395) and lowest intac...
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