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What type of sedimentary rocks form from once-separate grains that have been packed together and then cemented to one another (lithified) ?
Q5: Burrowing of the fertilized egg into the
Q11: Which layer of Earth does NOT contain
Q14: Why were mammals able to become the
Q17: As _ occurs, intact rock is broken
Q18: What are the steps involved in the
Q22: What is an epicontinental sea? Why might
Q30: Shorelines migrate _ during a transgression and
Q38: The external genitalia of a female are
Q44: A large portion of the coal reserves
Q67: Semen is a liquid portion that acts