Current Affairs Quiz – September 2025

Notes:
Air Quality Life Index (AQLI) 2025 report by the Energy Policy Institute, University of Chicago, shows air pollution is India’s top health threat. Dirty air cuts 3.5 years from average life expectancy, higher than malnutrition (1.6 years), tobacco use (1.5 years), and unsafe water (8.4 months). All 1.4 billion Indians live in areas exceeding World Health Organization (WHO) safe PM2.5 limit of 5 µg/m³. Northern India is the world’s most polluted region. Delhi-NCR residents face the highest loss with 8.2 years of life expectancy cut due to air pollution. Bihar residents lose 5.6 years of life expectancy. Haryana residents lose 5.3 years of life expectancy. The report urges urgent emission control to prevent loss of healthy years due to toxic air.

Notes:
United States (U.S.) and Japan are holding a joint military exercise where the Typhon intermediate-range missile system will be temporarily deployed in Japan. The Typhon missile system, also known as Mid-Range Capability (MRC) or Strategic Mid-Range Fires (SMRF), was developed by the United States and manufactured by Lockheed Martin. It uses a modular design that allows it to fire SM-6 missiles and Tomahawk cruise missiles. SM-6 missiles can engage targets beyond 320 km, while Tomahawk missiles offer deep-strike capability up to 1,500 km. The system is containerized, road-mobile, and highly survivable, allowing rapid deployment across allied regions.

Notes:
Matanomadh, a remote village in Kutch district, Gujarat, may serve as a test bed for ISRO’s Mangalyaan-2 mission to Mars. Researchers from Space Applications Centre (SAC) Ahmedabad, Savitribai Phule Pune University (SPPU), and Birbal Sahni Institute of Palaeosciences, Lucknow dated jarosite mineral in Matanomadh to 55 million years (Paleocene period). Jarosite is a yellow, iron-rich sulphate mineral, similar to those found on Mars, indicating past water activity. The site allows field-analogue studies for Mars, including rover testing, drilling, geochemistry, and astrobiology research. The discovery can help decode Martian geology, past chemical interactions, and organic molecule trapping, aiding future Mars missions.

Notes:
Union Minister of Electronics and Information Technology (MeitY) Shri Ashwini Vaishnaw launched India’s first Tempered Glass Manufacturing Facility for Mobile Devices in Noida. The facility is set up by Optiemus Electronics in collaboration with Corning Incorporated, USA, producing tempered glass under the brand “Engineered by Corning”. It will supply products to both domestic and international markets, supporting Make in India and Atmanirbhar Bharat initiatives. India’s electronics manufacturing has grown six times in 11 years to ₹11.5 lakh crore, with exports over ₹3 lakh crore and 2.5 million employed. The initiative aligns with India’s push for self-reliance in electronics, future chip production, and strengthening research and development capabilities.

Notes:
National Nutrition Week (NNW) is observed in India from 1st to 7th September by the Ministry of Health and Family Welfare (MoHFW). The week raises awareness about healthy eating, nutrition literacy, and balanced diets. The 2025 theme is “Eat Right for a Better Life”, focusing on sugar, salt, and oil. The week encourages moderation, informed choices, and healthier cooking habits without compromising taste.

Notes:
The annual Mela Patt festival recently began in Doda district, Jammu and Kashmir (J&K). The festival is dedicated to Lord Vasuki Nag, the presiding deity of Bhaderwah Valley. Rooted in Nag culture, it commemorates the historic meeting between Mughal Emperor Akbar and King Nag Pal of Bhaderwah. The festival has been celebrated since the 16th century. It was first observed when Bhaderwah was known as Bhadarkashi. The festival is observed every year on Nag Panchami, seven days after the Kailash Yatra, it is inclusive of all communities. Dhakku dance, the traditional dance of Dogras, is also performed. The festival highlights religious traditions, historical legacy, and cultural pride of Bhaderwah.

Notes:
A team of Indian and international researchers has discovered a new diatom species named Climaconeis heteropolaris in Udupi estuarine waters. It was found where the Sita and Swarna rivers meet before entering the Arabian Sea, Karnataka. Diatoms are photosynthetic, single-celled microscopic algae forming a key part of phytoplankton. They are found in lakes, ponds, rivers, streams, and oceans worldwide. Some float freely in water, while others attach to plants, rocks, or sediments as benthic diatoms. Diatoms produce oxygen, support aquatic life, and generate up to 50% of global atmospheric oxygen annually. They are vital in nutrient cycling of both marine and freshwater ecosystems.

Notes:
India unveiled its first fully indigenous 32-bit microprocessor, Vikram 3201, at Semicon India 2025. It is designed by Vikram Sarabhai Space Center (VSSC) and fabricated by Indian Space Research Organisation’s (ISRO) Semiconductor Laboratory (SCL), Chandigarh. Vikram 3201 is designed specifically for rockets and satellites, unlike processors in smartphones or laptops. It is an upgrade of Vikram 1601, a 16-bit processor used in ISRO launch vehicles since 2009. The processor manages navigation, control, and mission management in launch vehicles. The launch supports India’s semiconductor self-reliance, with five units under construction under the Design-Linked Incentive scheme.

Notes:
New Delhi will host the Badminton World Championships in August 2026. Announcement made by the Badminton World Federation (BWF) during the closing ceremony of the 2025 Championships in Paris. The championships return to India after 17 years and to Asia after four years. The event was last held in India in Hyderabad, 2009. India has a strong medal history at the Championships. PV Sindhu is India’s most successful player with five medals: one gold, two silver, and two bronze. Other Indian medalists include Satwiksairaj Rankireddy, Chirag Shetty, H S Prannoy, Prakash Padukone, Jwala Gutta, and Ashwini Ponappa.

Notes:
Scientists at Raman Research Institute (RRI) proposed a mission called PRATUSH to study the Cosmic Dawn. PRATUSH stands for Probing ReionizATion of the Universe using Signal from Hydrogen. It is a radio telescope to be placed on the far side of the Moon. It is built by Raman Research Institute (RRI) Bengaluru with collaboration from Indian Space Research Organisation (ISRO). It will use a wideband antenna (30–250 MHz), a self-calibratable analog receiver, and a digital correlator with 100 kHz spectral resolution. It will observe large sky regions continuously and record spectra of radio emission. Its nominal lifetime is two years to collect high-quality data.