Which of the following about ozone is incorrect
it is essential for breathing
it absorbs ultra-voilet rays
it is used to disinfect water
its proportion is about 3% in air
it is essential for breathing
it absorbs ultra-voilet rays
it is used to disinfect water
its proportion is about 3% in air
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Answer:
it is used to disinfect water
Answer:
it is essential for breathing is the answe
Explanation:
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