Mulching is a process that helps in
a) Weed control
b) Soil fertility
c) Moisture conservation
d) Improvement of soil structure

Hint: Soil fertility is the capacity of soil to supply plant nutrients in sufficient amounts for proper growth which in turn increases turnover of the crops produced.

Complete answer:
In order to answer this question, we need to know about mulching.

- A mulch is a layer of material applied to the outside of soil. Explanations behind applying mulch incorporate protection of soil dampness, improving richness and strength of the dirt, diminishing weed development and upgrading the visual intrigue of the territory.

- A mulch is normally, however not only, natural in nature. It might be lasting (for example plastic sheeting) or transitory (for example bark chips). It might be applied to exposed soil or around existing plants. Mulches of excrement or manure are fused normally into the dirt by the action of worms and different living beings.

The correct option is c, i.e., mulching helps in moisture conservation.

Additional information:
The procedure of mulching is utilized widely both in business crop creation and in planting, to effectively improve soil productivity.

Note:
> Evacuate any weeds, grass and dead plants from the nursery bed before mulching. .
> In spite of the fact that mulch can be applied whenever of the year, it is best applied in late-spring or mid spring.
> Before picking what sort of mulch to utilize, consider the inception of the local plant you are utilizing. Rainforest plants, for example, develop better with dark green natural mulch.
> Consider additionally how you're going to dilute the plants before laying the mulch. Drippers set under the mulch work productively. Remember that water applied over the mulch doesn't generally get down to the dirt.