Step 1: Concept Clarification:
The query seeks to identify the option that does not represent a positive outcome or benefit of the Green Revolution, suggesting it might involve detrimental effects. The provided text offers indicators for this.
Step 3: Detailed Analysis:
\[\begin{array}{rl} \bullet & \text{(A) Utilization of HYV seeds: This was fundamental to the Green Revolution, significantly boosting food production, a primary advantage.} \\ \bullet & \text{(B) Implementation of accessible credit schemes: The passage notes "access to credit facilities" as a strategic component. This enabled farmers to acquire new inputs, constituting an intended benefit.} \\ \bullet & \text{(C) Employment of chemical fertilizers and pesticides: Although their use was critical for the Green Revolution and short-term yield increases, the passage highlights a significant drawback: "the excess usage of chemical fertilizers and pesticides have harmed the long-term fertility of soil." Consequently, this is not an unqualified advantage in the long term.} \\ \bullet & \text{(D) Enhancement of irrigation systems: The passage mentions "assured water supplies" as a key input. The expansion of irrigation was a vital advantage enabling the effectiveness of HYV seeds.} \\ \end{array}\]
While the application of chemicals was integral to yield improvements, its adverse long-term environmental consequences render it the option that is "not an advantage" from a comprehensive perspective.
Step 4: Concluding Remark:
The use of chemical fertilizers and pesticides is not deemed a pure advantage due to its detrimental impact on long-term soil fertility.