Current Affairs Quiz - May 2025

Notes:
The Vembanad Lake Rejuvenation Project, led by the Alappuzha District Administration, is inspired by the Namami Gange Programme for river conservation. A five-year plan worth ₹188.25 crore has been submitted to the Chief Minister of Kerala and may be revised based on studies by the Centre for Water Resources Development and Management (CWRDM). Vembanad Lake is the longest lake in India and the largest in Kerala, stretching about 96.5 kilometres. It spreads across Alappuzha, Kottayam, and Ernakulam districts, covering around 2,033 square kilometres. The lake is known by names like Vembanad Kayal, Punnamada Lake, and Kochi Lake in different regions. It receives water from six rivers, including Meenachil, Achankovil, Pamba, and Manimala, and drains into the Arabian Sea.

Notes:
The European Red Admiral butterfly, scientifically called Vanessa atalanta, has been recorded for the first time in India near Dharamshala, Himachal Pradesh. This rare sighting was confirmed during a butterfly survey at Thatharna Hill in the Dhauladhar mountain range, at an altitude of 2,500 metres. The observation was verified by Himalayan butterfly expert Lovish Garlani from the Himachal Pradesh Forest Department. This raises the total number of butterfly species in Himachal Pradesh to 440, highlighting the region’s rich biodiversity. The species is known for long migrations across Europe and North America and was last seen in South Asia in 2022 in Pakistan after a 93-year gap. It has no confirmed records from China, Mongolia, or Afghanistan, making its presence in India a significant eastward range expansion.

Notes:
Satwiksairaj Rankireddy and Chirag Shetty recently received the Major Dhyan Chand Khel Ratna Award for their outstanding achievements in badminton. The pair reached the No. 1 rank in the Badminton World Federation rankings in 2023 and won the Asian Games gold medal in Hangzhou. The Major Dhyan Chand Khel Ratna Award was originally established as the Rajiv Gandhi Khel Ratna in 1991–92 and renamed in 2021. It is India’s highest sporting honour, given for the most exceptional performance by a sportsperson over the last four years. Only performances in recognized international events are eligible for consideration. The award includes a ₹25 lakh cash prize, a medal, and a certificate of honour, with typically one award given each year.

Notes:
Eight Gram Sabhas in Baipariguda block, Koraput district, Odisha, have harvested over 4 lakh bundles of kendu leaves in the 2025 season and are waiting for government notification to deregulate the trade. These communities are pushing to manage and sell kendu leaves under the Forest Rights Act (FRA), 2006. Kendu leaf, also known as Tendu leaf, is a vital non-wood forest product and is referred to as the “Green Gold of Odisha.” It is a major forest product in states like Madhya Pradesh, Chhattisgarh, Odisha, and others. Under the FRA, forest-dwelling communities have rights to collect, use, and sell minor forest products like kendu leaves.

Notes:
A research team from the Hong Kong University of Science and Technology (HKUST) has made the first-ever experimental observation of a two-dimensional layered altermagnet at room temperature. Altermagnets are a new class of antiferromagnetic materials that show momentum-dependent spin splitting without needing spin–orbit coupling (SOC) or overall magnetization. This spin splitting is caused by exchange interactions between magnetic sublattices connected by crystal symmetry, known as C-paired spin-valley locking (SVL). Altermagnets combine the stable spin properties of antiferromagnets with spin-split energy bands, making them promising for next-generation spintronic devices.

Notes:
Scientists from the University of Oxford have suggested a new way to monitor volcanic eruptions using a method called shear-wave splitting. Shear-wave splitting happens when seismic waves travel at different speeds depending on their direction, especially through rocks with tiny cracks. This technique was studied at Mount Ontake in Japan, which is an active stratovolcano located on Honshū Island, near Tokyo. Mount Ontake is Japan’s second-highest volcano and lies in the Pacific Ring of Fire.

Notes:
A recent study in the New England Journal of Medicine found that a weekly dose of semaglutide shows strong results in treating Metabolic Dysfunction-Associated Steatohepatitis (MASH). Semaglutide is a Glucagon-Like Peptide-1 (GLP-1) receptor agonist, first developed to treat Type 2 diabetes. It is the main ingredient in medicines like Ozempic, used for diabetes, and Wegovy, used for weight loss. MASH is a severe type of fatty liver disease caused by metabolic problems and not by alcohol. It involves fat buildup, inflammation, and liver scarring, and is linked to obesity, diabetes, and overnutrition. If not treated, MASH can lead to cirrhosis or liver failure.

Notes:
Recently, the US President instructed his administration to rebuild and expand Alcatraz, the notorious prison that has been closed for over 60 years on an isolated island off California’s coast. Alcatraz Island, also known as “The Rock,” is a rocky landmass in San Francisco Bay, United States. In 1849, the island was sold to the U.S. government and became home to the first California lighthouse in 1854. By 1859, the first permanent army troops were stationed there, and in 1861, it became a military prison. In 1934, Alcatraz became a federal prison, housing some of the most dangerous criminals. The prison had the capacity to hold over 330 prisoners, but typically housed around 260 at a time. Known as the most inescapable prison in the United States, it operated as a maximum-security facility until 1963.

Notes:
The Department of Biotechnology (DBT) has recently released detailed data, infographics, and graphical summaries on over 100 bacterial genomes under the ‘One Day One Genome’ initiative. A genome is the complete genetic material of an organism, made of unique DNA (Deoxyribonucleic Acid) or RNA (Ribonucleic Acid) sequences. These sequences are made of chemical units called nucleotide bases, and identifying their order is known as genomic sequencing. The ‘One Day One Genome’ initiative was launched in November 2024 by Department of Biotechnology (DBT) and Biotechnology Research and Innovation Council (BRIC). It is coordinated by BRIC-National Institute of Biomedical Genomics (NIBMG), West Bengal. Data contributions come from 13 BRIC institutions and two bodies: International Centre for Genetic Engineering and Biotechnology (ICGEB), New Delhi, and Regional Centre for Biotechnology (RCB), Faridabad.

Notes:
The Pulitzer Prizes 2025 were recently announced by the Pulitzer Prize Board to honor excellence in journalism and the arts. The Pulitzer Prize is considered the most prestigious award in journalism in the United States. It was established in the year 1917 and is administered by Columbia University. The award is overseen by the Pulitzer Prize Board, which consists of judges appointed by Columbia University. The prize is named after Joseph Pulitzer, a famous newspaper publisher who left funds in his will to create the School of Journalism and the Pulitzer Prize.