MCQOPTIONS
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| 1. |
The range of audible sound too painful noise varies from ________ decibel. |
| A. | a)1000000 to 1 |
| B. | 1 to 1000000 |
| C. | 10000 to 10000000 |
| D. | 1 to 130 |
| Answer» C. | |