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| 1. |
Give the importance of soil. Explain the any three factors to responsible for soil formation? |
| Answer» Factors Responsible for the Formation of SoilThe relief features, parent material, climate, vegetation and other life-forms as well as time apart from human activities are the major factors responsible for the formation of soil.1.\xa0Parent Material: It is deposited by streams or derived from in-situ weathering. In this stage, soil inherits many properties like the mineral composition, the colour, the particle size and the chemical elements. For example- Black soil derived its colour from lava rock2.\xa0Climate: It is one of the important factors in the formation of soil because it affects the rate of weathering of the parent rock.3. Role of precipitation: The variability in the precipitation modified the composition of the soil. For Example- Areas with little rainfall with high rate of evaporation led to the accumulation of salts in the soil. The soils underlying tropical rain forests tend to be nutrient-poor because of intensive leaching due to heavy rains.\xa04. Role of temperature: It is also play important role because fluctuations in temperature causes shrinking and swelling, frost action and general weathering in soils. | |