Match the items in column I and column II and choose the correct option:
| Column I | Column II |
| A. UV | i. Biomagnification |
| B. Biodegradable Organic matter | ii. Eutrophication |
| C. DDT | iii. Snow-blindness |
| D. Phosphates | iv. BOD |
1
A-ii, B-i, C-iv, D-iii
2
A-iii, B-ii, C-iv, D-i
3
A-iii, B-iv, C-i, D-ii
4
A-iii, B-i, C-iv, D-ii