Consider the following statements regarding ozone: 1. It is

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ESE (IES) EE 2017 (Non Technical)
Engineering aptitude
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Engineering aptitude

54

M: +2.00/-0.66

Consider the following statements regarding ozone:
1. It is continuously being produced and destroyed
2. It helps to sustain life on earth
3. It is formed in the atmosphere through photochemical reaction
Which of the above statements are correct?

[ESE (IES) EE 2017 (Non Technical)]

A 1 and 2 only

B 1 and 3 only

C 2 and 3 only

D 1, 2 and 3