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Environment & Ecology MCQs - 2026-04-06

31.
The bio-concrete material is designed to provide a stable and porous substrate for:
A Marine mammals to rest
B Coral larvae to settle and grow
C Submarine navigation
D Underwater mining operations
32.
Beyond biodiversity, what other significant benefits do healthy coral reefs provide?
A Increased atmospheric oxygen levels
B Coastal protection and economic benefits through tourism and fisheries
C Regulation of global rainfall patterns
D Source of rare earth minerals
33.
Pilot projects for the bio-concrete technology have been conducted in which of the following locations?
A The Amazon Rainforest and the Sahara Desert
B The Arctic Ocean and the Antarctic Peninsula
C The Great Barrier Reef and the Maldives
D The Mediterranean Sea and the Black Sea
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 the new 'bio-concrete' technology for coral reef restoration?
A It is a purely natural material with no artificial components.
B It accelerates coral settlement and growth by mimicking natural structures and incorporating beneficial microorganisms.
C It is significantly more expensive than traditional coral gardening methods.
D It is primarily designed for terrestrial plant restoration.