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UPSC PYQPrelims 2022

Civil Services Examination · Question 49

"Biorock technology" is talked about in which one of the following situations?

  1. Restoration of damaged coral reefs
  2. Development of building materials using plant residues
  3. Identification of areas for exploration/extraction of shale gas
  4. Providing salt licks for wild animals in forests/protected areas
Show answer & explanation

Answer: (A) Restoration of damaged coral reefs

Explanation

Biorock uses low-voltage current on steel frames to deposit limestone, helping corals regrow (used in the Gulf of Kutch).