2013
Q. 24
Set A
Geography
Agriculture
Contour bunding is a method of soil conservation used in
Smart Elimination
We associate countours with Hills/Mountains. As, options (a), (b) and (c) dosnt point out any relevance to Mountains, we go with none of the above (option (d))
Potential Trap
Contour bunding is for slopes/hilly areas. None of the options (Desert margins, Low flat plains, Scrublands) perfectly describe 'Hilly/Sloping agricultural land'.
Answer Key & Explanation
Answer: DThe correct answer is Option D.
Explanation:
- Contour Bunding: Involves constructing embankments along contours (lines of equal elevation) to arrest water flow and soil erosion.
- Ideal Location: It is primarily used in hilly areas or sloping lands with scanty to moderate rainfall to retain moisture and prevent runoff.
- Option Analysis:
- (a) Desert margins (strong wind): Requires Wind Breaks/Shelter belts.
- (b) Low flat plains (flooding): Bunding here is for flood control, not 'contour bunding' for soil conservation in the traditional sense.
- (c) Scrublands (weed): Irrelevant.
- Since the specific context of 'sloping agricultural land' is missing and other options refer to specific mismatching conditions, 'None of the above' is the official answer.
Value Addition
- Terrace Farming: Used on steep slopes.
- Shelter Belts: Used in coastal/dry regions to block wind.
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Difficulty Assessment
hard
Foundational question based on core concepts.