UGC NET, SET › Sources of Pollution, Pollutants, and their Impact on Human life › Question #9871
Single Choice Moderate

QThe balance in oxygen level is maintained by

ID: #9871 Sources of Pollution, Pollutants, and their Impact on Human life 191 views
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#9871Q ID
ModerateDifficulty
Sources of Pollution, Pollutants, and their Impact on Human lifeTopic
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  • A Photosynthesis and cellular respiration ✔ ✖
  • B Industrial emissions of gases ✔ ✖
  • C Release of ozone in upper atmosphere ✔ ✖
  • D None of the above ✔ ✖
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Explanation

Photosynthesis and cellular respiration
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