Ozone protects biosphere from

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Q: 77 (UPPSC/2014)
Ozone protects biosphere from—

question_subject: 

Science

question_exam: 

UPPSC

stats: 

0,69,7,4,69,2,1

keywords: 

{'ozone': [3, 0, 3, 5], 'ultraviolet rays': [0, 0, 1, 0], 'biosphere': [3, 0, 0, 1], 'red rays': [0, 0, 0, 1], 'gama rays': [0, 0, 0, 1]}