Windbreak

• A. Rows of trees planted on edge of fields to reduce wind erosion
• B. A ditch along field boundary
• C. A metal fence for pest control
• D. A shelterbelt with no trees

Answer: (A)

Windbreaks are rows of vegetation, usually trees or shrubs, placed along the edge of fields to slow down the wind before it reaches the soil. This helps reduce wind erosion, protects crops from wind damage, and conserves soil moisture by lowering evaporation. A shelterbelt is essentially a windbreak, but it needs trees or shrubs to actually slow the wind; without trees it wouldn’t perform the same protective function. The option describing rows of trees planted at the field edge matches this purpose best, whereas a ditch, a metal fence, or a shelterbelt with no trees wouldn’t achieve wind protection.