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Which of the following activities of man contribute to the breaking down of rocks?
A. fishing B. mining C. studying D. sky diving
2. Which of the following materials are transported by erosion?
A. rocks B. sediments C. soil D. water
3. Which of the following is NOT an agent of erosion
A. human B. soil C. wind D. water
4. Which of the following factors causes the breaking down of rocks?
A. man and animals B. plants C. temperature D. all of these
5. What refers to the breaking down of rocks into smaller pieces?
A. erosion B. landslide C. tsunami D. weathering 6. How do animals breakdown rocks
A. animals step on rocks. B. use of their hooves and horns C. acid from dead animals weaken rocks. D. all of the above
7. Which process refers to the movement of soil from one place to another place?
A. erosion B. deposition C. landscaping D. weathering
8. Which of the following human activities can lead to the destruction of the environment?
A. deforestation B. quarrying C. overcropping D. all of the above
9. How do roots of plant break down rocks?
A. They heat the rocks B. They split the rocks apart. C. They absorbed rock particles D. They leave materials on the rocks
10. Which of the following is a good effect of soil erosion?
A. clogging of irrigation B. decrease of food production C. deposition of mine tailings D. shaping of landforms
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