Consider the following statements about Soil 1 Soils are thick on steep slopes and th...........

Geography World - Soil and Vegetation

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Consider the following statements about Soil

1. Soils are thick on steep slopes and thin over flat areas.

2. Salt hardpans are a feature of humid areas.

3. Peats are a feature of sub-arctic and tundra regions.

Select the correct answer using the codes given below

1 and 2 only

2 only

3 only

2 and 3 only

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Explanation:

Statement 1 is incorrect as the soils are thin over steep slopes due to erosion or transportation under the influence of gravity. In contrast to this, the soils on flat areas or plains are thick layered.
Statement 2 is incorrect as Salt hardpans are a feature of hot and dry areas where evaporation exceeds precipitation. As a result underground water rises to the surface due to capillary action. At surface, the water evaporates leaving the salts behind leading to salt hardpans.
Statement 3 is correct. Peatlands are a feature of cold areas where organic matter’s decomposition is prevented by cold climate (bacterial growth is slow) or anaerobic conditions created by snow or water.