Match List-I with List-II and choose correct answer using the code given below the indices-
| Index-I | Index-II |
| A. 21 March | 1. World Forest Day |
| B. 22 April | 2. World Earth Day |
| C. 16 September | 3. Ozone Day |
| D. 2 February | 4. World Wetland Day |
1
A-1, B-2, C-3, D-4
2
A-2, B-1, C-3, D-4
3
A-3, B-4, C-1, D-2
4
A-4, B-3, C-1, D-2