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Study the Following Statements About Ozone:It is Essential for Breathing of Living Organisms.It is Used to Disinfect Water.It Absorbs Ultraviolet Raysits Proportion in Air is About 3%. Which of These - Science

MCQ

Study the following statements about ozone:

a) It is essential for breathing of living organisms.

b) It is used to disinfect water.

c) It absorbs ultraviolet rays

d) Its proportion in air is about 3%.

Which of these statements are correct?

Options

  • (a), (b) and (c)

  • (b) and (c)

  • (a) and (d)

  • All four

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Solution

(b) and (c)

  Is there an error in this question or solution?
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APPEARS IN

NCERT Class 7 Science
Chapter 18 Wastewater Story
Q 12 | Page 229
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