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Type: Multiple-Choice
Category: Biotic and Abiotic
Level: Grade 9
Author: sebastiandavis12
Last Modified: 7 years ago

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Biotic and Abiotic Question

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Grade 9 Biotic and Abiotic

What ozone-depleting substance has NOT been phased out in developing and developed countries?
  1. bromochloromethane (BCM)
  2. chlorofluorocarbons (CFCs )
  3. hydrobromofluorocarbons (HBFCs)
  4. hydrochlorofluorocarbons (HCFCs)