Threats to Biodiversity · NCERT Biology

How does global warming specifically threaten coastal biodiversity?

  1. By increasing the salinity of the open ocean
  2. By causing sea-level rise which submerges coastal habitats
  3. By reducing the amount of CO2 available for aquatic plants
  4. By increasing the thickness of the ozone layer
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Correct answer: By causing sea-level rise which submerges coastal habitats

Global warming leads to the melting of polar ice caps and thermal expansion of seawater. The resulting sea-level rise can submerge mangroves, salt marshes, and low-lying coastal breeding grounds.

Difficulty: Medium Question 13 of 20

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