Give reasons. Soil is turned over during tilling.

Soil is turned over during tilling for several important reasons. Here’s a simple explanation according to user intent:

1. Aeration of Soil – Turning the soil allows air to penetrate, which helps roots breathe and promotes the growth of beneficial microorganisms.
2. Mixing Nutrients – Tilling mixes fertilizers, compost, and organic matter evenly into the soil, making nutrients more accessible to plants.
3. Weed Control – By turning the soil, weeds are uprooted or buried, reducing their competition with crops for water and nutrients.
4. Improving Soil Texture – It breaks clumps of soil, making it loose and soft, which improves water retention and drainage.
5. Encouraging Root Growth – Loosened soil makes it easier for roots to grow deep and spread, which supports healthy plant growth.

In short: Tilling improves soil health, fertility, and crop growth.