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"Ozone" as such


A) protects the earth from ultraviolet sunrays

B) is catalyst in a number of chemical reactions

C) is utilised in greenhouse farming

D) is a gas which is hazardous when inhaled

Correct Answer:
A) protects the earth from ultraviolet sunrays


Part of solved TNPSC Question Paper-2000 questions and answers : Exams >> TNPSC >> TNPSC Question Paper-2000




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