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Subjects

Geography

Soil formation processes

In this Class 11 Geography topic from Geomorphic Processes, students learn how soil develops through the weathering of rocks and the gradual interaction of parent material, climate, organisms, relief and time. The topic explains key processes such as the addition and loss of materials, transformation of minerals and the movement of clay and other substances within the soil profile. It also helps students understand soil horizons, profile development and the influence of erosion and drainage on soil formation.

Hard · Level 6 · 25 questions

Practice questions

01How can nutrient availability for plants change when mineralization is rapid?

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02Why does the possibility of peat like organic soil increase in cold waterlogged areas?

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03What may be the main reason for development of a deep organic rich layer in grassland soil?

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04Why is mycorrhiza useful for plants in soil?

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05Bioturbation in soil formation is the result of what?

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06Why can root growth decline when crumb structure in soil becomes poor?

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07Shrink swell activity in black soil is related to what?

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08Repeated upward and downward movement of water in soil can strengthen which process?

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09Why can capillary action increase surface salinity in dry regions?

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10Why can oxidation increase when soil drainage is good?

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11Which colour tendency can appear in soil due to higher ferric iron?

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12Why can it be wrong to draw a final conclusion only from soil colour?

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13Particle size of parent material can directly affect which soil property?

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14Why can carbonation have a stronger effect in limestone areas?

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15How is hydrolysis connected with clay mineral formation in soil?

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16Which condition is most suitable for oxidation?

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17How is the interaction of organisms and climate seen in soil formation?

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18If parent material is same but slope position differs why can soils differ?

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19Why can horizons remain weak even after a long time in soil formation?

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20Why is mature soil more likely on a flat stable surface?

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21Why can transported soil brought by a river differ from local rock?

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22What is one reason for fertile soil formation from loess deposits?

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23Why can the direction of soil development become negative after deforestation?

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24How does terracing conserve soil on sloping land?

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25Which is the most balanced scientific conclusion about soil formation?

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