Question 5 from UPSC CSE 2022 - Current Affairs

Question

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

Accepted Answer

Correct Option: A. Restoration of damaged coral reefs

Strategy: Focus on the unique keyword 'Biorock' and its well-known application in marine restoration, particularly coral reefs. Its international recognition for promoting coral growth through mineral accretion simplifies identifying its association with underwater ecosystems.

Key Info: Biorock technology is a marine-based restoration technique.

It utilizes low-voltage electrical currents to stimulate mineral accretion (mainly calcium carbonate and magnesium hydroxide) on submerged steel structures. This process facilitates rapid coral growth and healing.

Key applications and characteristics:
-   Used worldwide for coral reef restoration in areas impacted by climate change, ocean acidification, or physical damage.
-   Developed in the late 20th century.
-   Deployed in diverse regions including Indonesia, Maldives, Caribbean, Indian Ocean, and Southeast Asia.

Biorock is not related to:
-   Construction material development
-   Shale gas exploration
-   Provisioning of salt licks for animals

Coral reefs are vital marine ecosystems, crucial for biodiversity, coastal protection, and supporting fisheries. Technologies like Biorock are important tools in marine conservation efforts.

Answer

Option B: Development of building materials using plant residues

Answer

Option C: Identification of areas for exploration/extraction of shale gas

Answer

Option D: Providing salt licks for wild animals in forest/protected areas