Current Affairs Quiz - January, 2025

Notes:
IIT Roorkee researchers developed a method to degrade plasticizers like diethyl hexyl phthalate (DEHP) using bacterial enzymes. DEHP is found in plastics and personal care products, posing health risks. Esterase enzyme from Sulfobacillus acidophilus breaks DEHP into mono-(2-ethylhexyl) phthalate (MEHP) and 2-ethyl hexanol. The enzyme was structurally studied using X-ray crystallography and remains active for about a month. Researchers used four additional enzymes from Comamonas testosteroni to complete the degradation process. Integrating enzymes into bacteria ensures prolonged activity and continuous degradation without needing fresh batches. Plasticizers enhance flexibility and shine in products but can be absorbed through the skin, posing health dangers.

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A new study highlights gaps in understanding the Clouded Leopard’s habitat, fragmentation, and connectivity, offering a conservation roadmap. The Clouded Leopard is a wild cat found in dense forests of the Himalayas, Southeast Asia, and South China. There are two species: the mainland Clouded Leopard (Neofelis nebulosa) and the Sunda Clouded Leopard (Neofelis diardi). They are ancient cats but neither true great nor small cats, as they cannot roar or purr. Clouded Leopards prefer tropical rainforests but can also be found in woodlands and mangrove swamps. They are found in India’s northeastern states and are the state animal of Meghalaya. Both species are classified as ‘Vulnerable’ by the IUCN Red List.

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The Indian Railways organized a “Paint My City” campaign in Prayagraj, Uttar Pradesh to beautify the city’s railway stations for the 2025 Maha Kumbh Mela. The campaign aimed to showcase the city’s rich cultural and spiritual heritage to pilgrims and tourists. The campaign transformed Prayagraj railway station into art and culture centers. The campaign featured murals depicting Hindu mythology, Indian traditions, and women’s empowerment.

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Russia has formed an emergency task force to address an oil spill in the Kerch Strait. The Kerch Strait links the Black Sea with the Sea of Azov and separates Crimea from Russia’s Taman Peninsula. It is 3 km long, 15 km wide, and 18 meters deep, with its narrowest point being 3-5 km. Kerch city is situated on the Crimean side of the strait. The Kerch Strait is a crucial global shipping route.

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The Parshuram Kund Mela has started in Arunachal Pradesh. Parshuram Kund is a Hindu pilgrimage site on the Brahmaputra plateau near the Lohit River. It is also known as the “Kumbh of the Northeast,” the festival attracts thousands of devotees from India and abroad.

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The Union Home Ministry is considering a proposal to regularize nautor land in Ladakh, granting locals ownership of government wastelands they have used for years. Nautor Land refers to barren government land allocated for cultivation or productive use with official approval. It originated in 1932 under Hari Singh in Jammu and Kashmir and was later adopted in Himachal Pradesh in 1968 before being halted. The policy targets hilly and remote areas like Leh, Kargil, and parts of Himachal Pradesh. Regularization ensures ownership for locals, safeguards resources from outsiders, and preserves cultural and economic traditions.

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India has developed the world’s most powerful hydrogen train engine with 1,200 horsepower. It was made by Indian Railways using indigenous technology. The first trial run will be conducted on the Jind-Sonipat route in Haryana. This innovation supports hydrogen-powered trains and can be adapted for trucks, tugboats, and other vehicles.

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INS Surat, INS Nilgiri, and INS Vaghsheer were commissioned into the Indian Navy for the first time. INS Surat is a stealth-guided missile destroyer, part of Project 15B, known as the Visakhapatnam class. It is India’s first warship equipped with artificial intelligence (AI) solutions. INS Surat has a displacement of 7,400 tonnes, a length of 164 meters, and a COGAG propulsion system with four gas turbines. It can achieve speeds over 30 knots (56 km/h) and is armed with advanced surface-to-air missiles, anti-ship missiles, torpedoes, and sensors. Designed for high-speed offensive naval operations with superior strike power and maneuverability.

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The Telecom Regulatory Authority of India (TRAI) recommended capping Internet tariffs for Wi-Fi service providers under the Prime Minister’s Wi-Fi Access Network Interface (PM-WANI) scheme at twice the rate of retail broadband. The PM-WANI scheme was launched in December 2020 by the Department of Telecommunication. The scheme aims to expand public Wi-Fi hotspots, especially in rural areas. It seeks to enhance digital infrastructure, increase employment for small entrepreneurs, and provide low-cost internet to underserved urban and rural households. The scheme encourages local shops to offer Wi-Fi for last-mile delivery without requiring a license or registration fee.

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The Union Cabinet approved a Third Launch Pad (TLP) at Satish Dhawan Space Centre, Sriharikota, Andhra Pradesh. TLP will support ISRO’s Next Generation Launch Vehicles (NGLV) and human spaceflight missions. It will serve as a backup for the Second Launch Pad (SLP) and support LVM3 vehicles with advanced stages. The project costs ₹3984.86 crore and is expected to be completed in four years. TLP will boost launch frequencies, enabling India’s space goals, including the Bharatiya Antariksha Station by 2035 and crewed lunar landing by 2040. It enhances India’s capacity for heavier and advanced launch vehicles.