A farm tool used for harvesting heads of rice is the

The correct answer is sickle. A sickle is a farm tool that is commonly used for harvesting small grains like rice, wheat, and barley. It has a long, curved blade with a sharp edge that is used to cut the stalks of the grain crops close to the ground. The blade of the sickle is typically made of metal and is attached to a wooden handle that is easy to grip and maneuver. The sickle is designed to be lightweight and easy to use, making it an efficient tool for harvesting small grains by hand. After harvesting, the grain heads are typically bundled together and left to dry before they are threshed to separate the grains from the chaff. Sickle is an important tool for small-scale farmers who do not have access to more expensive and complex harvesting machinery.