likhoUPSC

Sign in

Home› UPSC CSE› Prelims GS Paper I› 2022 questions› Question 90

UPSC CSE Prelims

Subject: Environment & Ecology Chapter: Aquatic Ecosystems

2022 PYQ

Question 90

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

Choose one answer ARestoration of damaged coral reefs BDevelopment of building materials using plant residues CIdentification of areas for exploration/extraction of shale gas DProviding salt licks for wild animals in forests/protected areas

Skip →

View correct answer and explanation

Correct answer: A

Correct Option: A (Restoration of damaged coral reefs) Explanation: Biorock reef restoration uses low-voltage electric currents through underwater metal frameworks to deposit calcium carbonate, aiding coral attachment and growth. Option-wise Analysis: A. Correct-the technology has been used to support damaged coral-reef restoration. B. Incorrect-It is not a method of converting crop residues into construction products. C. Incorrect-Shale-gas prospecting uses geological/geophysical methods, not Biorock electro-deposition. D. Incorrect-Mineral salt licks for wild animals do not involve Biorock reef frameworks.

← Previous question Next question →

© 2022 LikhoUPSC · Independent learning website; not affiliated with or endorsed by UPSC.

Previous Year Questions UPSC website NCERT textbooks