Which is the most efficient implement for land grading when animal power is used in the job and the fields are of small to medium size?

Correct option is B

· Correct answer: (b) Buck Scraper
· The Buck Scraper is commonly used for land grading with animal power in small to medium-sized fields. It is efficient for leveling the ground and removing excess soil.
Other options:
· (a) Bulldozer: Not suitable for small to medium-sized fields and not usually powered by animals.
· (c) Land plane: A land plane is more efficient for larger fields.
· (d) Wooden float: Primarily used for smoothing soil, not for grading.