Question

The possible beneficial affect of grazing animals is the

• A. Removal of wild animals
• B. Eradication of weeds
• C. Removal of wild plants
• D. Addition of their excreta to the soil

Answer 1

The correct option is D Addition of their excreta to the soil

Grazing destroys green cover of land. In fact overgrazing is the most important reason for desertification. Trampling of soil makes it compact and exposes it to wind and water erosion but grazing may be beneficial by adding the excreta of animals into soil, which adds organic matter and provides essential mineral nutrition to plants. Animal excreta improves soil structure and nutrition status.