Question
What is the role of Ultraviolet Radiation (U
- V in the water purification systems? 1. It inactivates/kills the harmful microorganisms in water 2. It removes all the undesirable odours from the water Select the correct answer;- (a) 1 only (b) 1 and 2 both (c) 2 only (d) Neither 1 and nor 2
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