Concept:Organic farming avoids synthetic chemicals and uses natural inputs like compost, green manure, and biological pest control to sustain soil fertility and crop health.
Explanation:Organic farming relies on natural manures (e.g., compost, animal waste) and natural pest control methods instead of chemical fertilizers or pesticides.
It does not use genetic modification or synthetic inputs.
The goal is to maintain long-term soil fertility, biodiversity, and environmental health.
Option C correctly describes this approach.
Answer:C. natural manures and pesticides are used