ANSWER:
C. Rocks that form from materials that existed in older rocks.
This is as sedimentary rocks are formed as the result of the weathering of pre-existing rocks. These rocks are older in age.
Therefore, as Option C is the best definition of this out of the options, it is the correcr answer.
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Answer:
Mariana Trench is the deepest point on Earth
The Answer is second option (Tombouctou).
Answer:
scientist study the earth core by using submarine..
