10. Sedimentary rocks are useful as records of past time because of

A. their layered structure
B. the minerals found in them
C. their unique colors
D. their volcanic origin



Answer :

Final answer:

Sedimentary rocks are important records of Earth's history due to their layered structure, fossils, and sedimentary structures.


Explanation:

Sedimentary rocks are valuable as records of past time due to their layered structure, which reveals the sequence of events in Earth's history. They also contain fossils that provide information about past lifeforms, and sedimentary structures that reflect events during their formation, aiding geologists in reconstructing past environments.


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