MCQs - 2026-06

Microplastics are defined as plastic pieces that are smaller than 5 mm in length, originating from the breakdown of larger plastic items or manufactured as microbeads.

Marine heatwaves can cause widespread mortality and ecosystem shifts in kelp forests and seagrass meadows, impacting the species that depend on them.

Elevated sea temperatures during marine heatwaves cause corals to expel the symbiotic algae living in their tissues, leading to coral bleaching and potential death.

Marine heatwaves are defined as discrete, prolonged periods of extreme warmth in the ocean, typically lasting for days to months.

All mentioned initiatives, including the National Mission for Green India, PMKSY (with its focus on water use efficiency), and NAP, contribute to combating desertification and land degradation in India.

The Desertification and Land Degradation Atlas, developed by ISRO, provides crucial data on the spatial distribution and changes in land degradation, aiding in policy formulation and intervention.

India is a signatory to the UNCCD and has committed to achieving Land Degradation Neutrality (LDN) by 2030, aligning with the Sustainable Development Goals.

BVR stands for Beyond Visual Range, meaning the missile can engage targets at distances beyond the pilot's visual range.

Astra has been successfully integrated and tested on the Su-30 MKI fighter aircraft.

Astra is India's first indigenous beyond-visual-range air-to-air missile.