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| Q. |
The sound can travel in air when: |
| A. | Particles of medium travel from one place to another |
| B. | There is no moisture in the atmosphere |
| C. | Disturbance travel from one place to another |
| D. | Both particles as well as disturbance travel from one place to another |
| Answer» C. Disturbance travel from one place to another | |
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