Environment & Ecology MCQs

31.

Early trials of bio-concrete technology in the Indo-Pacific region have shown:

A A decrease in coral larval settlement rates.

B A 40% higher settlement rate of coral larvae and faster growth.

C No significant difference compared to traditional restoration methods.

D Increased susceptibility of corals to bleaching.

32.

Which Sustainable Development Goal (SDG) is most directly supported by advancements in coral reef restoration technologies like bio-concrete?

A SDG 13: Climate Action

B SDG 14: Life Below Water

C SDG 15: Life on Land

D SDG 11: Sustainable Cities and Communities

33.

The development of bio-concrete technology is most directly aimed at addressing which major threat to coral reefs?

A Ocean acidification due to increased atmospheric CO2.

B Habitat loss and degradation due to climate change and human activities.

C Overpopulation of herbivorous fish that graze on corals.

D Introduction of non-native species that outcompete corals.

34.

Which of the following is a key characteristic of bio-concrete in its interaction with the marine environment?

A It is highly acidic, promoting rapid coral calcification.

B It is designed to remain inert and unchanging for centuries.

C It is pH-neutral and gradually dissolves, releasing essential minerals.

D It actively inhibits the growth of algae on its surface.

35.

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

A It is a permanent structure that provides long-term artificial habitat.

B It mimics natural coral skeletons, promoting higher larval settlement and growth rates.

C It is made from recycled plastic, reducing marine pollution.

D It actively repels invasive species from coral reefs.

Environment & Ecology MCQs - 2026-04-04