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Rock Layers Show History Practice Test
•3 QuestionsQuestion
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Q1
Two rock columns are shown. In each column, layers represent deposition over time.
Column X (top to bottom):
┌──────────────┐
│ X1 │
├──────────────┤
│ X2 │
├──────────────┤
│ X3 │
└──────────────┘
Column Y (top to bottom):
┌──────────────┐
│ Y1 │
├──────────────┤
│ Y2 │
├──────────────┤
│ Y3 │
└──────────────┘
A scientist claims: “Because X2 and Y2 are the same thickness, they formed at the same time.” Which choice best evaluates this claim using the columns?
Two rock columns are shown. In each column, layers represent deposition over time.
Column X (top to bottom):
┌──────────────┐
│ X1 │
├──────────────┤
│ X2 │
├──────────────┤
│ X3 │
└──────────────┘
Column Y (top to bottom):
┌──────────────┐
│ Y1 │
├──────────────┤
│ Y2 │
├──────────────┤
│ Y3 │
└──────────────┘
A scientist claims: “Because X2 and Y2 are the same thickness, they formed at the same time.” Which choice best evaluates this claim using the columns?