Step 1: Anna Hazare (A)
Anna Hazare, known for anti-corruption work, initially transformed his village, Ralegan Siddhi, through community-based watershed development.Therefore, A corresponds to (IV).
Step 2: Rajender Singh (B)
Rajender Singh, the "waterman of India," is famous for water conservation in Rajasthan, mainly through the NGO Tarun Bharat Sangh.Thus, B corresponds to (II).
Step 3: Chandi Prasad Bhatt (C)
Chandi Prasad Bhatt, an Indian environmentalist and social activist, was a Chipko movement pioneer in the 1970s.Hence, C corresponds to (III).
Step 4: Medha Patkar (D)
Medha Patkar is a social activist and a founder of the Narmada Bachao Andolan (Save the Narmada Movement).Thus, D corresponds to (I).Conclusion: The correct matching is A-IV, B-II, C-III, D-I.
List-I and List-II
| List-I | List-II |
|---|---|
| (A) Brundtland Report | (I) 1992 |
| (B) Antarctic Treaty | (II) 1991 |
| (C) Antarctic Environmental Protocol | (III) 1959 |
| (D) Earth Summit in Rio de Janeiro | (IV) 1987 |