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Answer 7-9 thanks
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7. The correct answer is that the type of rock that is shown is a sedimentary rock because its appearance shows different formed layers of sand, silt, dead plants, animal skeletons, and other features and characteristics.

8. This clastic sedimentary rock formed from pre-existing minerals and rocks. The sedimentary rock went through processes of weathering, transportation or depression, where sediment is disturbed or trapped. The sediment can also go through a process of being buried deeply, then it becomes compacted and cemented, which forms a sedimentary rock.

9. When a sedimentary rock goes deep underground, it experiences exposure towards heat and pressure. This distorts the rock and turns it into a metamorphic rock.