Concept:Farmers applying research findings helps them adopt improved practices that reduce harmful effects on the environment.
Explanation:Research findings provide modern farming techniques such as soil conservation, proper agrochemical use, and waste management.
When farmers adopt these practices, they can control erosion, maintain soil fertility, and reduce pollution.
Unpredictable climate cannot be prevented by adopting research findings.
Insufficient basic amenities and poor extension service are institutional problems, not solved directly by farmers' adoption.
Thus, environmental degradation is the problem that can be reduced when farmers follow research-based methods.
Answer:C. Environmental degradation