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Significance of Atmosphere

Answer Text:
Significance of Atmosphere
a) Animals and plants breathe in from it oxygen for respiration.
b) Plants use carbon dioxide from it for photosynthesis.
c) Water vapour in the atmosphere condenses to form clouds which give us rain.
d) Ozone layer in the stratosphere shields us from ultraviolet radiation which may cause cancers.
e) Carbon dioxide and methane in the atmosphere cause global warming through the greenhouse effect.