Changing Earth Surface
Middle School Science · Flashcards · Recall
MIDDLE SCHOOL SCIENCE · FLASHCARDS
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QUESTION
Which principle states that in undisturbed sedimentary layers, the oldest layer is at the bottom?
QUESTION
What does a sedimentary rock layer (stratum) most directly indicate about past conditions?
QUESTION
What is a fossil, and why is it useful evidence for past surface environments?
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ANSWER
Preserved remains/traces; indicates past conditions and depositional setting. Shows what lived there and environmental conditions.
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