[1]. Recently, OPEC+ agreed in principle to maintain steady oil output despite falling crude prices and geopolitical uncertainty. Which of the following statements best describes OPEC+?

[A]. A formal treaty-based organisation regulating global oil prices

[B]. A grouping formed to coordinate oil production between OPEC and non-OPEC producers

[C]. An alliance consisting only of Middle Eastern oil-exporting countries

[D]. A body created by the United Nations to manage energy security

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[2]. Recently, Oil and Natural Gas Corporation (ONGC) announced plans to store captured carbon dioxide in depleted wells at the Gandhar oilfield in Gujarat as part of its first full-scale Carbon Capture and Storage (CCS) pilot. The Gandhar oilfield is located in which of the following basins?

[A]. Krishna-Godavari Basin

[B]. Cauvery Basin

[C]. Cambay Basin

[D]. Assam-Arakan Basin

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[3]. Recently, Dr. Ambarish Ghosh of IISc Bengaluru received the 2025 Tata Transformation Prize for developing magnetic nanorobots for cancer treatment. Nanorobots are best described as:

[A]. Large robotic systems used in industrial automation

[B]. Microscopic robots designed to perform specific tasks at the nanoscale

[C]. Chemical compounds used in chemotherapy

[D]. Artificial intelligence software used for medical imaging

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[4]. Recently, a study used microlensing to measure the mass of a rogue planet (a planet that does not orbit a star). Microlensing works primarily because:

[A]. Massive objects bend and magnify light from background stars

[B]. Planets emit strong infrared radiation detected by telescopes

[C]. Rogue planets reflect sunlight more efficiently than stars

[D]. Gravitational waves distort stellar brightness

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[5]. Recently, the first supermoon of 2026, known as the Wolf Supermoon, was observed across India and several other parts of the world on January 3. What makes a Wolf Supermoon special?

[A]. It is a new moon that occurs in January

[B]. It is a full moon occurring at the Moon’s farthest point from Earth

[C]. It is a January full moon that occurs near the Moon’s closest point to Earth

[D]. It is caused by Earth’s shadow falling on the Moon

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