Which of the following is not an aim of improving crops?
Answer Details
The aim of improving crops is to increase the quantity and quality of agricultural products. Among the options given, "improving mechanical method of harvesting crops" is not an aim of improving crops. Rather, it is a technique used to make the harvesting process more efficient, and it is not directly related to the characteristics of the crops themselves.
To put it simply, the first four options are focused on improving the crops themselves to make them more resistant, adaptable, and productive, while the last option is about improving the process of harvesting these crops.