environment medium True/False

Ocean acidification, caused by absorption of excess CO2, threatens marine organisms with calcium carbonate shells or skeletons.

  1. True
  2. False

Answer: True

Lower pH reduces carbonate ion availability, making it harder for corals, mollusks, and plankton to build and maintain shells/skeletons.

Topic Marine and Coastal Environment
Exam Relevance UPSC, SSC
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