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Q. |
Ultraviolet radiation which is not lethal but harm to the organism 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» B. 0.28-0.32 µm |
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