1. ___ sedimentary rock found on contients is marine in origin. a. some b. littl

Question

1. ___ sedimentary rock found on contients is marine in origin. a. some b. little, c. most, d. all
2. which of the following was NOT produced by orogeny? a. rockies, b. himalyas, c. appalachians, d. colorado plateau
3. ___is formed from marine microoganisms. a. coal, b. petroleum and natural gas, or c. silver
4. recent sediment is deposited ____older sediement. a. on top of , b. below, or c. mixed with
5.which of the following statements are true for dikes? a. made of sedentar rock, b. are extrusive, c. cut across layered rock, d. can be compared to a glazed donut or e. are older than the surrounding layered rock.
6. the law of superposition can be applied to which of the following a. thrust faults, b. graded beds, or c. folds.
7. in a thrust fault younger rock is __over older rock. a never b. always .. c.. sometimes

Explanation / Answer

1. Some sedimentary rocks (chemical sedimentary rocks) found on continents are marine in origin. Hence option (a) is correct answer.
2. Plateau is not formed by orogeny. Orogeny refers to forces and events leading to structural deformationof Earth's crust due to the engagement of tectonic plates. Hence option (d) is correct answer. 3. Petroleum and natural gas are formed from the marin microgrganisms. Hence option (b) is correct answer. 4. Recent sediment is deposited on top of the older sediment. Hence option (a) is correct answer. 5. Dikes are extrusive (volcanic) rocks. Hence option (b) is correct anwer. 6. The law of superpositon can be applied to thrust faults. Hence option (a) is correct answer. 7. In the thrust fault younger rock is never over older rock. Hence option (a) is correct answer.

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