UPSC Civil Services 2022 Prelims General Studies Paper I

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Question : 49 of 100

Marks: +1, -0

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

Restoration of damaged coral reefs
Development of building materials using plant residues
Identification of areas for exploration/extraction of shale gas
Providing salt licks for wild animals in forests/protected areas

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