Mulching helps in

The correct answer is: B. moisture conservation

Mulching is the practice of applying a layer of material to the soil surface. Mulches can be made from organic materials such as leaves, straw, or compost, or from inorganic materials such as plastic or gravel.

Mulching helps to conserve moisture in the soil by reducing evaporation. It also helps to suppress weeds and improve soil structure. Mulches can also add nutrients to the soil and help to regulate soil temperature.

Here is a brief explanation of each option:

• A. soil fertility: Mulching can help to improve soil fertility by adding nutrients to the soil. However, this is not the primary purpose of mulching.
• B. moisture conservation: Mulching is most effective at conserving moisture in the soil. It does this by reducing evaporation from the soil surface.
• C. improvements soil structure: Mulching can help to improve soil structure by adding organic matter to the soil. This can help to make the soil more porous and less compacted.
• D. soil sterility: Mulching does not cause soil sterility. In fact, it can help to improve soil fertility and structure.