Concept:Burning farmlands is discouraged mainly because it damages the natural fertility and structure of the soil.
Explanation:Farmland burning removes the layer of organic matter present in the topsoil.
This organic matter, such as humus and decomposed plant material, is essential for holding water and nutrients.
When these organic components are destroyed, the soil loses its ability to support healthy plant growth.
As a result, the land becomes less fertile and less productive over time.
Although burning can also kill some seeds, the major long-term harm is the loss of soil organic matter.
Answer:A. destroys organic components of the soil