DAILY CURRENT AFFAIRS QUIZ – 17 September, 2025

Explanation: CBSE operates under the Ministry of Education and issues circulars/guidelines to schools. These are administrative orders, not laws passed by Parliament (statutory regulation) nor changes to the Constitution (amendment). Judicial directives come from the courts, which is not the case here. Therefore, the 75% attendance mandate is an executive decision implemented through board guidelines.

Explanation: The Ministry of Agriculture & Farmers’ Welfare tracks agricultural output, implements schemes like PM-KISAN, and supports crop diversification. While the Ministry of Finance reports GDP growth in aggregate, sectoral performance data originates from line ministries. The Ministry of Rural Development focuses on rural livelihoods and infrastructure, while the Environment Ministry addresses climate and biodiversity, not direct agricultural output.

Explanation: Cell motility is crucial for embryonic development, immune response, and tissue repair. Abnormal cell movement also plays a role in cancer metastasis. The discovery of the spin nindi protein provides deeper understanding of cellular machinery and may open doors for therapies in regenerative medicine and oncology. Unlike photosynthesis, hormone regulation, or blood clotting, this protein specifically influences how cells migrate within tissues.

Explanation: World Ozone Day, observed on September 16, commemorates the Montreal Protocol (1987), which phased out ozone-depleting substances (ODS). The 2025 theme highlighted how scientific discoveries on ozone depletion translated into strong global policies, making it one of the most successful environmental agreements. Previous themes included “Ozone for Life,” but 2025 emphasizes the science-policy linkage in environmental protection.

 Explanation: Vaishali Rameshbabu, sister of Grandmaster Praggnanandhaa, is one of India’s rising stars in chess. Her win at the prestigious FIDE Women’s Grand Swiss tournament places her among top global players. This is significant not only for sports but also for women’s empowerment and India’s growing reputation in mind sports. Koneru Humpy and Dronavalli Harika are also top Indian players but were not the winners of this 2025 event.