Monohar Pandey Solutions for Exercise 6: Exercise 6

Match the following
   List I                                           List II
(Team)                                       (Definition)
A. Vernalisation     1. Heat needed by plants to germinate
B. Aestivation        2. Transitional zone in biomes working overlap rather than boundary
C. Ecotone            3. State of inactively adopted by desert animals during not season
D. Wilting              4. Moisture loss being more than uptake by the plant roots
Codes

Assertion (A) The profile of podzol soils is best developed.
Reason (R) They develop in coniferous forest belt.
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Assertion (A) Laterites have a low fertility.
Reason (R) High rainfall helps in leaching out of minerals.
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Assertion (A) Crop rotation helps in pest control.
Reason (R) Crop rotation helps in maintaining soil fertility.
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Assertion (A) Soils of tropical regions are rich in insoluble iron and aluminium compounds.
Reason (R) High temperature and humidity are favourable to bacterial activity and the soils thus lack humus.
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Assertion (A) Peaty soils are very fertile.
Reason (R) They have large accumulation of organic matter.
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Assertion (A) Laterite soils are porous in structure.
Reason (R) High amount of rainfall results in leaching of soluble minerals and silica.
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Assertion (A) Podzols are rich in humus.
Reason (R) The low temperature prohibits bacterial action, leading to accumulation of humus.
Codes