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PIMSO 2022 - Science - Grade 3 - National Round Question 22

PIMSO Science · PIMSO 2022 - Science - Grade 3 - National Round

Question 22

The following are processes that contribute to the Carbon Cycle EXCEPT

Editorial correction: in option B, interpret the process as marine calcium-carbonate shell formation; the chemical wording is reviewed in the solution.
  1. Animals eating food
  2. Marine animal’s utilization of carbonic acid in making shells
  3. Fuel combustion
  4. Breathing
  5. All of the above contribute to the Carbon Cycle