MCQs - 2026-04

A key objective of the mission is to position India as a leading global producer and exporter of green hydrogen.

The high capital cost of electrolyzers and the need for extensive renewable energy infrastructure are significant hurdles to the cost-competitiveness and large-scale deployment of green hydrogen.

The National Green Hydrogen Mission was officially launched by the Indian government in January 2023.

Green hydrogen is produced by splitting water molecules into hydrogen and oxygen using electrolysis, with the electricity for this process sourced from renewable energy sources like solar and wind.

Coral reefs are often referred to as the 'rainforests of the sea' because of their immense biodiversity and critical role in supporting a vast array of marine life, similar to rainforests on land.

The bio-concrete is seeded with beneficial microorganisms that help promote coral health and prevent the overgrowth of algae, which can be detrimental to coral survival.

Pilot projects for the new bio-concrete technology have been successfully implemented in the Great Barrier Reef and the Maldives, demonstrating its effectiveness in coral restoration.

Climate change, leading to ocean warming and acidification, along with pollution from various sources, are the primary drivers of coral reef degradation worldwide.

Bio-concrete's key innovation lies in its ability to mimic the natural calcium carbonate structure of coral skeletons, offering a suitable and stable environment for coral larvae to settle and grow.

The doctrine positions the Indian Navy as a net security provider in the Indian Ocean Region.