Ozone present in the ozone layer of the atmosphere is important because
Options
(a)It gives oxygen on dissociation
(b)It shields other gases
(c)It helps in the growth of the plants by absorbing a large proportion of the sun’s ultraviolet radiations
(d)None of these
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Class 9Atmosphere and Climate— NCERT Social Science, Chapter 3. The atmosphere is a blanket of air held by gravity: by volume about 78% nitrogen, 21% oxygen, 0.93% argon and 0.04% carbon dioxide, with variable water vapour and dust.…
Class 11Composition and Structure of Atmosphere— NCERT Geography, Chapter 7. The atmosphere is a mixture of gases, water vapour and dust that envelops the earth; 99% of its mass lies within 32 km. Oxygen becomes negligible by 120 km; carbon…
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