Question : Which of the following is a cause of soil erosion?

Option 1: Overgrazing by livestock

Option 2: Deforestation

Option 3: Improper agricultural practices

Option 4: All of the above

Correct Answer: All of the above

Solution : The correct answer is (D) All of the above

Soil erosion is caused by various factors, and all of the options listed contribute to soil erosion. Here's a brief explanation of each factor:

Overgrazing by livestock: When animals graze on vegetation excessively, it can lead to the removal of vegetation cover, leaving the soil exposed to erosion by wind and water.

Deforestation: Clearing forests without implementing proper soil conservation measures can result in soil erosion. The tree roots that once held the soil in place are removed, and without their presence, the soil becomes vulnerable to erosion by wind and water.

Improper agricultural practices: Certain agricultural practices, such as intensive tillage, leaving fields bare between planting seasons, and inadequate erosion control measures, can accelerate soil erosion. These practices disturb the soil structure and reduce its ability to resist erosion.

Soil erosion is a significant environmental issue with detrimental effects on agricultural productivity, water quality, and ecosystem health. Implementing proper land management practices, including terracing, contour plowing, agroforestry, and maintaining vegetation cover, can help mitigate soil erosion and preserve soil resources.