Question 15 Marks
Answer
View full question & answer→| Nature of sound | Unpleasant | Pleasant |
| 1. Speaking | ✓ | |
| 2. Whispering | ✓ | |
| 3. Aeroplane Sounds | ✓ | |
| 4. Horns of Vehicles | ✓ | |
| 5. Railway Engine | ✓ | |
| 6. Rustling of leaves | ✓ | |
| 7. Neighing of a horse | ✓ | |
| 8. Ticking of a clock | ✓ |