Environment & Ecology MCQs

31.

The 'rainforests of the sea' is a common analogy for coral reefs due to their:

A High rainfall patterns

B Abundant biodiversity and ecological importance

C Dense canopy structure

D Association with freshwater sources

32.

Besides providing a substrate, what other beneficial feature does 'bio-concrete' incorporate?

A It releases artificial nutrients to stimulate coral growth.

B It is seeded with beneficial microorganisms that promote coral health.

C It emits low-frequency sound waves to attract fish.

D It is coated with a UV-resistant film to prevent bleaching.

33.

The 'bio-concrete' technology is reported to have shown promising results in pilot projects in which of the following locations?

A Amazon Rainforest and Sahara Desert

B Great Barrier Reef and the Maldives

C Arctic Ocean and Antarctic Peninsula

D Himalayan Mountains and Andes Mountains

34.

Which of the following are major threats to coral reefs globally?

A Volcanic activity and seismic shifts

B Overfishing and plastic pollution

C Climate change (ocean warming and acidification) and pollution

D Invasive species and deforestation

35.

What is the primary advantage of 'bio-concrete' technology in coral reef restoration?

A It is cheaper to produce than traditional concrete.

B It mimics the natural calcium carbonate structure of coral skeletons, providing a stable substrate.

C It actively repels all forms of marine life, preventing overgrowth.

D It is designed to be easily removed after coral growth.

Environment & Ecology MCQs - 2026-04-07