TS Police SI Model Paper 1
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Question : 77 of 200
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The following is true about ozone:
(A) It is essential for respiration of animals and plants.
(B) It absorbs ultraviolet rays.
(C) Its percentage in air is almost 3%.
(D) It is used to disinfect water.
(A) It is essential for respiration of animals and plants.
(B) It absorbs ultraviolet rays.
(C) Its percentage in air is almost 3%.
(D) It is used to disinfect water.
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