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
A (a)
B (b)
C (c)
D (d)
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