gs1medium
The acidification of oceans is increasing. Why is this phenomenon a cause of concern?
- 1.The growth and survival of calcareous phytoplankton will be adversely affected.
- 2.The growth and survival of coral reefs will be adversely affected.
- 3.The survival of some animals that have phytoplankton larvae will be adversely affected.
- 4.The cloud seeding and formation of clouds will be adversely affected.
Which of the statements are correct?
- A.1, 2 and 3 only
- B.2 only
- C.1 and 3 only
- D.1, 2, 3 and 4
▶ Answer & Explanation
Correct answer: A. 1, 2 and 3 only
Ocean acidification, primarily caused by the absorption of excess atmospheric carbon dioxide, leads to a decrease in seawater pH. This makes it difficult for marine organisms with calcium carbonate shells or skeletons, such as corals and phytoplankton, to build and maintain them. Consequently, coral reefs, which are vital ecosystems, are threatened, and organisms relying on phytoplankton, including many fish larvae, face survival challenges. Cloud formation is not directly affected by ocean acidification.
Source: UPSC gs1 2012