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Q. |
The light rays used for eliminating bacteria – |
A. | X-rays |
B. | infrared rays |
C. | microwave radiation |
D. | ultra-violet radiation |
Answer» D. ultra-violet radiation | |
Explanation: Ultraviolet radiation is used to kill microorganisms, molds and fungus in various environmental applications. UV sterilization is used for air-purification systems, water purification, aquarium and pond maintenance, laboratory hygiene and food and beverage protection. |
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