| Column I | Column II |
| A. UV | i. Biomagnification |
| B. Biodegradable Organic matter | ii. Eutrophication |
| C. DDT | iii. Snow blindness |
| D. Phosphates | iv. BOD |
| Column I | Column II |
| A. UV | iii. Snow blindness |
| B. Biodegradable Organic matter | iv. BOD |
| C. DDT | i. Biomagnification |
| D. Phosphates | ii. Eutrophication |