Current Affairs Quiz - November, 2024

Notes:
NTPC has created a catalyst to produce methanol from gases emitted by fossil-fired power plants. This development was achieved in collaboration with the Indian Institute of Petroleum. CO2 mitigation is a major challenge for fossil-fired power plants. The focus is on capturing CO2 from flue gas and converting it into valuable fuels and chemicals. The catalyst produces methanol with a purity of over 99%.

Notes:
NASA’s Landsat 8 satellite captured images of ‘sea smoke’ rising from Antarctica’s Pine Island Glacier, a phenomenon where frigid air meets warm water, creating fog-like plumes. This rare atmospheric event highlights the glacier’s vulnerability and the impact of strong winds on polar ice sheets. Sea smoke forms when cold air cools and condenses over open waters, resulting in ghostly ice crystal plumes that can influence ice mass balance. Pine Island Glacier is known for its rapid retreat and significant role in ice flow dynamics.

Notes:
Scientists have discovered a lost Mayan city in the dense Mexican jungle using LiDAR technology. LiDAR stands for Light Detection and Ranging and is a remote sensing method that uses pulsed lasers to measure distances to the Earth’s surface. It can create high-resolution 3-D models of ground elevation with vertical accuracy of up to 10 cm. The LiDAR system includes a laser, scanner, and GPS receiver. The laser fires rapidly, hitting surfaces like vegetation and buildings, with the reflected light recorded by the sensor.

Notes:
Cyclone Dana brought heavy rain to Kolkata, causing chhatim trees (Alstonia scholaris) to shed their strong-smelling flowers, offering relief for allergy and asthma sufferers. It is a tropical tree in the dogbane family (Apocynaceae). Alstonia scholaris, also called blackboard tree, scholar tree, or devil’s tree, is native to the Indian subcontinent, Southeast Asia, and southern China. Known as “saptaparni” in India, it has clusters of seven leaves and blooms small, fragrant greenish-white flowers in late autumn. The tree’s bark and leaves are used in traditional medicine for respiratory, skin, and digestive issues. Its wood was once used to make blackboards, hence the name “blackboard tree.”

Notes:
India’s Ministry of Culture and the International Buddhist Confederation are hosting the first Asian Buddhist Summit on November 5-6, 2024, in New Delhi. The theme is “Role of Buddha Dhamma in Strengthening Asia,” with India’s President as Chief Guest. The summit gathers Sangha leaders, scholars, and practitioners from across Asia to discuss Buddhism’s role in addressing current challenges. Buddhism has deeply influenced Asia’s spiritual and cultural unity. Buddha Dhamma is integral to India’s national identity and plays a role in its foreign policy, strengthening ties across Asia through shared values and diplomacy.

Notes:
Annapurna Base Camp saw a record number of tourists after this year’s Dashain festival. Mount Annapurna is located in Gandaki Province, north-central Nepal, in the Annapurna Range. It is the world’s tenth-highest peak, with an elevation of 8,091 meters. The mountain lies within the Annapurna Conservation Area, covering 7,629 square kilometers. Known as the “Killer Mountain” due to its high fatality rate among climbers attempting the summit.

Notes:
The traditional ‘Hingot war Festival’ takes place annually in Gautampura, Madhya Pradesh. Participants throw “burning arrows” (Hingots) at each other in this event. This tradition is seen as a display of bravery, not just a ritual. This annual event involves two rival groups, Kalangi and Turra, who engage in a fiery battle by throwing ‘Hingot’ rockets at each other. Thousands of spectators attended, with extensive safety measures by the administration and police to protect them.

Notes:
Obstructive sleep apnea (OSA) is linked to a higher risk of dementia, especially in women, as shown by a study of over 18,500 adults. OSA is the most common sleep-related breathing disorder where breathing repeatedly stops and starts during sleep due to an airway blockage. This disruption in breathing lowers oxygen levels, causing frequent awakenings and poor sleep quality. Symptoms include snoring and fatigue, with risks increasing in middle-aged and older adults. OSA affects cardiovascular health, mental well-being, and safety. Treatments include positive airway pressure devices, mouthpieces, and surgery in some cases.

Notes:
The Global Environment Outlook (GEO-7) is a crucial report being drafted by the United Nations Environment Programme (UNEP). It aims to offer policymakers a comprehensive assessment of environmental changes and effective solutions to combat pressing ecological issues. Scheduled for launch at the United Nations Environment Assembly (UNEA-7) in December 2025, GEO-7 will cover a broad spectrum of environmental topics, emphasizing the interconnectedness of environmental health with economic and social stability, thereby influencing decisions across various sectors for sustainable development.

Notes:
Scientists from the Indian Institute of Astrophysics (IIA) in Bengaluru have made significant observations using the Visible Emission Line Coronagraph (VELC) on ADITYA-L1, India’s first solar mission. The VELC successfully captured and estimated the onset time of a Coronal Mass Ejection (CME) that occurred on July 16. This marks the first scientific result from India’s solar mission. The VELC’s capabilities allowed for close observation of the CME near the Sun’s surface, a breakthrough since such events are usually seen from a distance.