Current Affairs Quiz - May 2025

Notes:
Under the Swachh Bharat Mission-Urban, Ghaziabad issued India’s first Certified Green Municipal Bond, raising ₹150 crore for a Tertiary Sewage Treatment Plant (TSTP). This bond marks a major shift towards sustainable urban infrastructure and financial innovation. The Tertiary Sewage Treatment Plant uses advanced Membrane Filtration Technologies like microfiltration, ultrafiltration, nanofiltration, and reverse osmosis (RO) to treat wastewater. The plant has a treatment capacity of 40 Million Litres per Day (MLD) and is linked to a 95 km pipeline network. It supplies treated water to over 1,400 industrial units, cutting dependence on freshwater sources.

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Amazon has launched the first 27 satellites under its Project Kuiper to build an internet-from-space network. Project Kuiper is Amazon’s satellite broadband initiative using Low Earth Orbit (LEO), which is up to 2,000 kilometers above Earth. It includes around 3,232 satellites, ground stations, and customer terminals to provide the service. The goal is to deliver high-speed, low-latency, and affordable internet to remote and underserved regions globally. The project is named after the Kuiper Belt, a distant region of the solar system beyond the eight planets. It is Amazon’s answer to SpaceX’s Starlink satellite internet system.

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Justice Bhushan Ramkrishna Gavai has been appointed as the 52nd Chief Justice of India (CJI) and will take charge on May 14, 2025, succeeding Justice Sanjiv Khanna. The appointment of the Chief Justice of India is guided by Article 124(2) of the Constitution, which empowers the President of India to appoint the CJI. Article 126 allows for the appointment of an Acting Chief Justice if needed.

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Jal Shakti Minister C R Paatil held a review meeting on 30 April with the Wildlife Institute of India to assess the progress of the ‘Jalaj’ project. The ‘Jalaj’ project is a key initiative developed by the Ministry of Jal Shakti to support the rejuvenation of the Ganga River and biodiversity conservation. It involves setting up floating platforms on the Ganga River to promote livelihood activities for local communities. These platforms also raise awareness about conserving the river and its ecosystem. The project blends ecological restoration with sustainable development for Ganga-dependent populations.

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The American Association of Petroleum Geologists and the United States Geological Survey (USGS) have recently launched formal hydrogen exploration initiatives. Hydrogen is seen as the fuel of the future due to its ability to help decarbonize the global economy and reduce greenhouse gas emissions. Natural hydrogen, or white hydrogen, is hydrogen that naturally occurs in the Earth’s crust, unlike industrially produced hydrogen. It forms through geological processes such as serpentinisation, where water reacts with iron-rich rocks, radiolysis, the breakdown of water by radioactive rocks, and the decomposition of organic matter in deep geological formations.

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Global defence spending is rising fast due to uncertainty and rapid technology growth. As per Stockholm International Peace Research Institute (SIPRI), military expenditure reached $2.718 trillion in 2024, a 9.4% rise from 2023. China has the largest active military force with 2,035,000 personnel in 2025, according to Global Firepower. India ranks second with about 1,455,550 active personnel, showing strong defence strength and rising South Asian influence. The United States of America stands third with 1,328,000 troops, slightly reduced due to more focus on tech-based defence. Russia and Ukraine boosted troop numbers since 2022 due to ongoing conflict between them.

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Bodofa Upendranath Brahma was a respected leader of the Bodo community who championed non-violent struggle for tribal identity, rights and cultural preservation. On May 1, 2025, the Government of India (GoI) unveiled his 9-feet-high statue in New Delhi, marking his 35th death anniversary. Union Home Minister (UHM) Amit Shah presided over the unveiling and announced the naming of a major road and rotary after him. This tribute underscores the Government of India’s commitment to tribal empowerment and peacebuilding in India’s North East.

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Tunnel No. 8 (T-8) is set to become India’s longest railway tunnel at 14.57 km, overtaking Tunnel No. 50 (T-50), which is 12.77 km long on the Udhampur-Srinagar-Baramulla Railway Link. It is part of the Rishikesh–Karnaprayag Broad Gauge Rail Link Project in Uttarakhand. T-8 is a twin tunnel located on the Devprayag–Janasu stretch of this 125-km rail line. The Rishikesh–Karnaprayag Broad Gauge Rail Link Project is being implemented by Rail Vikas Nigam Limited (RVNL), a Navratna Public Sector Undertaking under the Ministry of Railways.

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Maharashtra’s Nashik hosts the ‘Yoga Mahotsav 2025’ as part of the countdown to International Day of Yoga (IDY) 2025. It was organised by Morarji Desai National Institute of Yoga (MDNIY), Ministry of Ayurveda, Yoga and Naturopathy, Unani, Siddha and Homoeopathy (Ayush). The event took place at Gauri Maidan, Panchavati, celebrating India’s Yoga heritage and launching the Yoga Sangam Portal for online registrations. Yoga Sangam is a major initiative under International Day of Yoga (IDY) 2025 to enable synchronized Yoga practice at 1,00,000 locations across India on June 21. The event promoted the Common Yoga Protocol (CYP), focusing on practices like Pranayama and Dhyana to improve health and harmony.

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A new mosquito species called the “Pwani molecular form” has been found in coastal areas of Tanzania and Kenya, drawing global attention to malaria control. It belongs to the Anopheles gambiae complex, which includes some of the world’s most dangerous malaria-spreading mosquitoes. This mosquito shows strong genetic differences from other species in the same group, suggesting unique behaviour or environmental adaptation. Genetic studies confirm it is only found along the coastal regions of East Africa, mainly in Tanzania and Kenya. It does not carry the usual genes for insecticide resistance found in other malaria vectors. This may mean it has a different resistance method or is more sensitive to current insecticides.