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One-Word Answer Type Questions – Land Degradation and Conservation Measures
1. What is the process by which fertile land loses its productivity?
Answer: Degradation
Explanation: Land degradation occurs due to deforestation, soil erosion, overgrazing, and excessive use of chemical fertilizers.
2. Which human activity is a major cause of land degradation?
Answer: Deforestation
Explanation: Deforestation leads to soil erosion and loss of soil fertility, contributing to land degradation.
3. What is the term for the removal of the topmost fertile layer of soil?
Answer: Erosion
Explanation: Soil erosion occurs due to wind, water, and deforestation, reducing the fertility of land.
4. Which farming technique is used in hilly areas to reduce soil erosion?
Answer: Terrace
Explanation: Terrace farming involves cutting steps into slopes to slow down water flow and prevent soil erosion.
5. What is the practice of planting trees to restore degraded land?
Answer: Afforestation
Explanation: Afforestation helps prevent soil erosion and improves soil fertility by increasing vegetation cover.
6. Which type of land is most affected by excessive irrigation and improper drainage?
Answer: Salinization
Explanation: Salinization occurs when excessive irrigation leads to salt accumulation in the soil, reducing its productivity.
7. Which soil conservation method involves planting trees along field boundaries?
Answer: Shelterbelts
Explanation: Shelterbelts protect soil from wind erosion and improve moisture retention in dry regions.
8. What is the natural process of replenishing soil nutrients called?
Answer: Humus
Explanation: Humus formation enriches soil by adding organic matter, making it more fertile and resistant to degradation.
9. Which human activity leads to the expansion of desert-like conditions?
Answer: Overgrazing
Explanation: Overgrazing by livestock removes vegetation cover, leading to desertification and loss of soil quality.
10. Which land conservation technique involves growing different crops in succession to maintain soil fertility?
Answer: Crop Rotation
Explanation: Crop rotation helps restore soil nutrients and prevents land degradation caused by continuous farming of the same crop.
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