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Yogesh • 7.43K Points
Tutor III Chemistry 

Q. 'Carbon dioxide cycle' implies that

  • (A) the carbon dioxide structure is cyclic
  • (B) ocygen is changed into carbon dioxide by respiration of human beings and then to oxygen and carbon dioxide by green plants
  • (C) the carbon dioxide consumes oxygen
  • (D) carbon dioxide moves in the air in a cycle
Correct Answer - Option(B)

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