Global MCQ Practice

Part of: Rajasthan Gk set 36

In states like Rajasthan, Gujarat, Madhya Pradesh and Maharashtra land degradation has caused due to .....

Category: Rajasthan Gk

Hint: Consider the impact of livestock on vegetation in dry regions.

Correct Answer: C) Over grazing.

Exam Relevance: UPSC, SSC, State PSC

Difficulty: Moderate

Explanations:
  • Soil Erosion: Without vegetation to hold the soil in place, wind and water can easily erode the topsoil, which is the most fertile layer. This leads to a loss of soil nutrients and a decrease in agricultural productivity.
  • Desertification: Overgrazing can lead to the expansion of desert-like conditions, where the land becomes barren and unable to support plant life. This process is known as desertification and is a significant concern in arid and semi-arid regions.
  • Loss of Biodiversity: Overgrazing can reduce the diversity of plant species, which in turn affects the animals that depend on these plants for food and shelter. This can lead to a decline in biodiversity and a loss of ecosystem services.
    • Option Analysis:
    • Option A: Mining can cause land degradation, but it is not the primary cause in the listed states. Mining typically affects specific areas and does not have the widespread impact of overgrazing in these regions.
    • Option B: Over irrigation is a significant issue in some regions, but it is not the primary cause of land degradation in Rajasthan, Gujarat, Madhya Pradesh, and Maharashtra. Over irrigation typically leads to waterlogging and salinization, which are not the main issues in these states.
    • Option C: Overgrazing is the correct answer. In arid and semi-arid regions, overgrazing by livestock can lead to the depletion of vegetation, soil erosion, and desertification. This is a significant issue in the listed states.
    • Option D: Overuse of fertilizers can cause land degradation, but it is not the primary cause in the listed states. Overuse of fertilizers typically leads to soil and water pollution, which is not the main issue in these regions.

    Mnemonic: G-R-A-Z-E: Grazing Reduces Arable Zones Endangeringly

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