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

• (a) Restoration of damaged coral reefs — Correct. Biorock technology uses low-voltage electrical currents on submerged structures to stimulate deposition of minerals like calcium carbonate, helping coral reef restoration.
• (b) Development of building materials using plant residues — Incorrect. This relates to bio-composites/green construction materials, not Biorock technology.
• (c) Identification of areas for exploration/extraction of shale gas — Incorrect. Shale gas exploration uses geological and geophysical techniques, unrelated to Biorock.
• (d) Providing salt licks for wild animals in forest/protected areas — Incorrect. Salt licks are a wildlife management practice and have no connection with Biorock.

Answer: (a)