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MCQs - 2026-04

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2831.
What is a key economic benefit expected from the National Green Hydrogen Mission?
A Increased reliance on imported fossil fuels
B Creation of millions of green jobs and boost to domestic manufacturing
C Reduction in renewable energy generation
D Decreased export potential for clean energy technologies
2832.
Which of the following is NOT a major challenge for India's Green Hydrogen Mission?
A High cost of electrolyzers
B Availability of sufficient renewable energy capacity
C Development of hydrogen storage and transportation infrastructure
D Lack of government interest and policy support
2833.
India launched its National Green Hydrogen Mission in which year?
A 2021
B 2022
C 2023
D 2024
2834.
What is the primary method for producing green hydrogen?
A Steam methane reforming
B Coal gasification
C Electrolysis powered by renewable energy
D Biomass gasification
2835.
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
2836.
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
2837.
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
2838.
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
2839.
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.
2840.
What does ASW stand for in the context of maritime operations?
A Air-Surface Warfare
B Anti-Submarine Warfare
C Advanced Strategic Warfare
D All-weather Surveillance Wing
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