Match List-I with List-II
Choose the correct answer from the options given below:
Show Hint
To solve matching questions quickly, look for the most certain pair.
Landslides are highly characteristic of hilly areas, which immediately links (B) to (III).
The C:N ratio is the primary regulator of soil mineralization and immobilization, linking (C) to (II).
Step 1: Understanding the Concept:
This question covers fundamental concepts in soil science, including conservation, geological hazards, organic matter dynamics, and land management.
Connecting specific practices and parameters with their biological or physical contexts is essential for correct matching. Step 2: Detailed Explanation:
- (A) Soil conservation: Strip cropping is a key agronomic soil conservation practice.
It involves growing alternating strips of erosion-permitting crops (like maize) and erosion-resistant crops (like legumes) across the slope to slow down runoff and reduce soil erosion. Thus, (A) matches (IV).
- (B) Landslides: Landslides are geological mass-wasting events characterized by downhill movement of rock, soil, and debris.
They are highly prevalent in hilly areas due to steep slopes, heavy rainfall, and seismic activity. Thus, (B) matches (III).
- (C) C:N ratio: The Carbon-to-Nitrogen (C:N) ratio of organic residues determines whether nitrogen mineralization (release of inorganic nitrogen) or immobilization (biological uptake of nitrogen) occurs during decomposition.
A high C:N ratio (\( > 30:1 \)) leads to immobilization, while a low C:N ratio (\( < 20:1 \)) leads to mineralization. Thus, (C) matches (II).
- (D) Land use: Proper land use planning is guided by soil capability classification, which assesses the physical limitations of the soil to prevent land degradation. Thus, (D) matches (I).
Combining these pairs gives: (A) - (IV), (B) - (III), (C) - (II), (D) - (I).
This matches Option (B). Step 3: Final Answer:
The correct matching sequence is (A) - (IV), (B) - (III), (C) - (II), (D) - (I).
