42) AU-shaped depression formed at the head of an alpine glacier is calledThe wo

Question

42) AU-shaped depression formed at the head of an alpine glacier is calledThe word is "arena" or "amphitheater a. Moraine b. Tan c. Esker d. Cirque 43) Which of the following soil horizon designations is in the correct sequence from the surface to the bedrock? a. A, B, C, O, R b. O, R, C, B, A c. S, O, I, L d. O, A, E, B, C, R 44) A relatively even mixture of sand, silt, and clay considered ideal for agriculture is called: a. Humus b. Ped c. Loamm d. Eluviation 45) Which of the following influence the development of soil? a. b. c. d. Climate and Vegetation Topography Time All of the above

Explanation / Answer

42. Answer: d.Cirque Explanation: It is caused by the erosion of glaciers which are smaller in shape. 43. Answer: d. O,A,E,B,C,R Explanation: They are all abbreviated as Organic, Surface(A), Elluvium(E), Subsoil(B), Substratum(C), Bedrock(R), 44. Answer: c. Loam Explanation: It is a soil with roughly equal proportions and is more fertile. 45. Answer: d. All of the above. Explanation: Usually it takes 60 days for good development of soil with well maintained topography and climate.

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