Which of the following is a human factor responsible for soil erosion? 1. Deforestation 2. Runoff water 3. Overgrazing 4. Glacial erosion Select the correct answer using the codes given below:

Which of the following is a human factor responsible for soil erosion? 1. Deforestation 2. Runoff water 3. Overgrazing 4. Glacial erosion Select the correct answer using the codes given below: Correct Answer 1 and 3

The correct answer is 1 and 3.

Key Points

  • Soil Erosion:
    • Soil involves is the removal of soil, sand and rock material from the top surface of the ground and then transportation of it. 
  • Agents of soil erosion:
    • Running water
    • Wind
  • Causes of Soil erosion:
    • Deforestation
    • Runoff water
    • Overgrazing
    • Glacial erosion
  • Out of all these, the human factor responsible for soil erosion is Deforestation and Overgrazing.
    • Deforestation:
      • The roots of plants and trees go deep as they grow big. 
      • This helps in holding the soil and excessive cutting of trees leads to loosening of this soil leading to soil erosion. Hence, statement 1 is correct
    • Overgrazing:
      • Grass and shrubs also play their part in holding the soil with their roots and overgrazing by cattle and other animals lead to the loosening of the soil leading to soil erosion. Hence, statement 3 is correct

Related Questions

Statement I : Portions of glacial troughs may exhibit remarkably flat floors. Statement II : The flat floor in a glacial trough is produced by uniform glacial erosion.
Overgrazing is an environmental hazard where wildlife or livestock excessively feeds on pasture. It takes place when pasture is repeatedly removed from land and it is not given enough time to continue growing. It signifies a serious environmental challenge in maintaining the natural balance of live-stocks on grazing lands, which reduces the productivity,usefulness and biodiversity of the land. There are several effects of this on the environment. Which of the following, if true, would weaken the conclusion about the disadvantages of overgrazing?