Environment & Ecology MCQs: Climate, Wildlife, and Conservation

291.

What is India's target year for achieving net-zero emissions, which the National Green Hydrogen Mission contributes to?

A 2047

B 2050

C 2060

D 2070

292.

Which of the following sectors is considered 'hard-to-abate' and a primary target for decarbonization using green hydrogen?

A Residential heating

B Light-duty vehicles

C Heavy industry, shipping, and aviation

D Agriculture

293.

Which of the following is a key policy incentive introduced under the National Green Hydrogen Mission to encourage investment?

A Increased import duties on electrolyzers.

B Production-linked incentives (PLI) and waivers on inter-state transmission charges.

C Subsidies for grey hydrogen production.

D Restrictions on renewable energy deployment.

294.

Green hydrogen is produced by splitting water using:

A Fossil fuels

B Nuclear energy

C Renewable energy sources

D Geothermal energy

295.

What is the primary objective of India's National Green Hydrogen Mission?

A To increase the import of fossil fuels.

B To become a global hub for green hydrogen production and export.

C To promote the use of nuclear energy for hydrogen production.

D To subsidize the production of grey hydrogen.

296.

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.

297.

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

298.

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.

299.

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.

300.

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.