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Q. Consider the following compounds: 1.Isoprene 2.Hydrogen 3.Oxygen 4.Carbon dioxide 5. Carbon monoxide Which of the compounds are emitted by trees?
  • A. 2, 3, 4 and 5
  • B. 1, 4 and 5
  • C. 2, 3 and 4
  • D. 1, 3 and 4