Concept:Farm mechanization is the use of machines and tools in farming to improve efficiency, reduce labour, and increase output, but it does not involve genetic modification of crops.
Explanation:Mechanization helps farmers obtain higher farm yield by enabling timely planting, harvesting, and better land preparation.
It also allows farm operations to be carried out quickly, covering larger areas in less time.
Through careful handling and processing, the quality of farm produce can be improved with the use of machines.
However, producing disease-resistant crop varieties is achieved through plant breeding, genetic selection, or biotechnology, not through farm mechanization.
Thus, this option is not an objective of farm mechanization.
Answer:D. produce disease-resistant crop varieties