Daily Current Affairs MCQs: 21st September 2025 - Karnataka (KSP) Police Constable MCQ

The White House has announced a new entry fee of $100,000 for H-1B visa holders, which is mandatory for all new applicants outside the U.S. This significant fee has raised concerns among Indian tech workers, who constitute a large portion of H-1B visa users, as it could impact their ability to work in the country.

The IRIS aims to quantify the impact of biomedical, public health, and related research initiatives through a metric called publication-equivalents (PEs). This is intended to provide a standardized measure of research impact across various disciplines, thereby influencing research priorities and funding decisions.

Fentanyl is a synthetic opioid that has become the leading cause of overdose deaths in the U.S., being nearly 50 times stronger than heroin. Its potency and the complexity of its supply chain contribute significantly to the current opioid crisis.

The committee has proposed that all media organizations implement a mandatory fact-checking mechanism to oversee editorial content, thus aiming to reduce the spread of misinformation and protect public order and democratic processes.

Isobutanol is considered for blending with diesel because it is less volatile and has a higher flash point than ethanol, which reduces fire risks and makes it safer for use in fuel blends. This characteristic is crucial in making it a viable alternative for biofuel production.

Chabahar Port is significant for India as it offers an alternative route for trade with Afghanistan and Central Asia, bypassing Pakistan. This strategic location enhances India’s trade prospects and geopolitical influence in the region.

India has added seven natural sites to UNESCO's Tentative List, reflecting its commitment to preserving its rich natural and cultural heritage. This brings India's total to 69 sites on the Tentative List, highlighting the country's diverse ecological and geological significance.

One major challenge in regulating fake news is the rapid spread of information on digital platforms, which allows false content to go viral before it can be fact-checked. This complicates timely interventions and highlights the need for effective strategies to manage misinformation.

The Supreme Court reinforced the Bonnard standard, which requires that injunctions in defamation cases can only be issued if it is clear that the defendant cannot prove their claims. This protects journalists' rights and emphasizes the importance of free speech and public discourse.

The main advantage of the IRIS metric is that it encourages diverse forms of impactful research rather than focusing solely on citation metrics. By assigning different publication-equivalent values to various types of research outputs, it promotes a broader understanding of research impact and its relevance to public health and policy.