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Which layer of rock is the oldest? 1. Layer A 2. Layer D 3. They are all the same age 4. There is not enough information to answer this question
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23 votes
Which layer of rock is the oldest?

1. Layer A
2. Layer D
3. They are all the same age
4. There is not enough information to answer this question

Which layer of rock is the oldest? 1. Layer A 2. Layer D 3. They are all the same-example-1
User Aventinus
by
3.8k points

1 Answer

6 votes
Layer D is the oldest because bottom layers form first and are covered by new rock layers.
User JasonP
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3.1k points
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