Which of the following is used to operate the seed drill? 

A seed drill is a farm tool used to precisely and uniformly plant seeds into the ground. 

The drill ensures that seeds are sown at equal spacing and depth, which can improve germination rates and promote healthy plant growth.

Modern seed drills are frequently mounted on the back of tractors. This allows for more efficient crop planting because the tractor can cover a large area in a short period of time. The seed drill can be programmed to plant seeds at specific depths and spacings to ensure proper growth.