EPS 38-Intro to Earth Science Common segment for sections (512/513) erinds away

Question

EPS 38-Intro to Earth Science Common segment for sections (512/513) erinds away at and polishes exposed s In arid regions, the action of b) dissolution e) oxidation d) unloacding 7. The underlying mechanism by which plate tectonics operates is a) differentiation b) aceretion d) inception VERY ANGULAR ANGULAR ANGULAR ROUNDED ROUNDED ROUNDED SUB SUB WELL 8. The above diagram shows the different degrees of roundness of sediment. Which side indicates an increase in the transport distance? a) To the left. b) To the right. c) All represent the same transport distance. d) It is not possible to tell from the above diagram. 9. According to the concept of albedo, open water will reflect light and produce a cooling effect. a) True. b) False. Page 2

Explanation / Answer

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Ans. Abrasion- Exposed rock surfaces undergo wear and tear because of friction when forces that bring about erosion come in contact with them. These surfaces are thus subjected to actions that bring about abrasion. They basically are constantly eroded due to scratching, marring or rubbing of other material. Over time, this leads to a polished surface of the same exposed rock.

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