Answer:
Seed drill.
Sowing by hand.
Explanation:
Jethro Tull was an agricultural engineer and the creator of the seed drill along with an upgraded plough. These progress in the 18th century played a vital role in the agricultural revolution, marked by improvements in productivity and farming technology. A seed drill is a tool used to sows seeds in fields for crops by putting them in the soil. Previously seed put by farmers with the hands which took a lot of time. They carried seeds in a bag and walk in the field, throwing by hand on to the ploughed ground.
