Correct option is C
The correct answer is tilling and ploughing.
The process of loosening and turning of soil is called tilling or ploughing. It is the first step in cultivation.
Tilling is done to:
• Improve soil quality: Tilling increases aeration, which improves soil quality.
• Help plants grow: Tilling loosens the soil so that plant roots can penetrate properly. It also helps seeds grow into mature plants.
• Control weeds: Tilling helps control weeds.
• Increase water absorption: Tilling loosens the soil so that it can absorb more water and manures.
Tilling is usually done with a plough, which is a tool made of wood and iron with an iron tip. A pair of bulls or a tractor pulls the plough.