Question
Match the columns I and II.
Column-I (Regions) Column-II (Process) A Warmer forest X Alkaline compounds accumulate near the surface B Deciduous and mixed forest Y Bacterial actions and rapid chemical actions C Steppe grassland Z Soils are less acidic D Humid tropics K Leaching is less significant
Choose the correct option.
The correct answer is
A—K; B—Z; C—X; D—Y
This question requires matching specific geographical regions (Column I) with their characteristic soil formation processes (Column II).
Analyzing Column I: Regions
- A - Warmer forest: Refers generally to temperate forest environments.
- B - Deciduous and mixed forest: Specific temperate forest types with seasonal leaf fall.
- C - Steppe grassland: Semi-arid regions dominated by grasses.
- D - Humid tropics: Equatorial regions with high temperature and rainfall.
Analyzing Column II: Processes
- X - Alkaline compounds accumulate near the surface: Typical in dry climates where evaporation exceeds precipitation, drawing salts upward.
- Y - Bacterial actions and rapid chemical actions: Characteristic of warm, moist environments where decomposition and weathering are fast.
- Z - Soils are less acidic: Often associated with temperate regions, particularly those with deciduous vegetation, leading to less acidic humus.
- K - Leaching is less significant: Implies conditions where water movement through the soil profile is limited, preserving minerals.
Matching Regions to Soil Processes
We can determine the matches based on typical climate and vegetation influences on soil development:
- Humid tropics (D) experience high temperatures and rainfall, leading to rapid decomposition and weathering. This strongly matches Y - Bacterial actions and rapid chemical actions.
- Steppe grasslands (C) are semi-arid. Low rainfall means less leaching, and high evaporation can cause upward movement of salts, leading to X - Alkaline compounds accumulate near the surface.
- Deciduous and mixed forests (B) in temperate zones have moderate conditions. The decomposition of leaf litter tends to result in Z - Soils are less acidic compared to, for example, coniferous forests.
- By elimination, Warmer forest (A) (interpreted as temperate forest) matches with K - Leaching is less significant when compared to the intense leaching in humid tropics.
Final Match and Correct Option
The established matches are:
- A — K
- B — Z
- C — X
- D — Y
This corresponds to Option C.
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Important Questions from Bio-Geography
- Ecological succession in the upwelling region of the Southwest coast of India can be best exemplified by
- Match the forests with their characters
Forests Characters A. Subtropical evergreen forest P. The trees are spaced widely apart B. Savanna woodland Q. Trees with small hard leathery leave C. Sclerophyll forest R. Straight trunked cone-shaped trees with relatively short branched and small, narrow needle like leaves D. Boreal forest S. Broad leaf T. Needle leaf Indentify the biomes
Match the ecological adaptive strategies with the plant types
Plant Type Adaptive strategies A. Hydrophytes E. germination of seeds before they shed; adventitious roots that develop from the base of the stem; negatively geotropic roots for supply of oxygen B. Mesophytes F. root systems are very deep; stems are dwarf and branched; stomata are less in number and generally confined to the lower surface of leaves C. Xerophytes G. leaves are thin, narrow, and linear; extensive aerenchyma in all organs; stomata are generally absent D. Halophytes H. leaves are large; stem is rigid and stout; normal physiological processes
Choose the correct option- Which one of the following terrestrial biomes is found in regions dominantly characterized by oxisols?
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