MCQOPTIONS
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| 1. |
Ultraviolet radiation which is not lethal but harm to theorganism is |
| A. | 0.1 to 0.28 µm |
| B. | 0.28-0.32 µm |
| C. | 0.32-0.4 µm |
| D. | 0.4-0.5 µm |
| Answer» C. 0.32-0.4 µm | |