UPSC Quiz – 2026 : IASbaba’s Daily Current Affairs Quiz 10th March 2026

Solution (d)

Options 1 and 2 are correct: Tritium is a radioactive isotope of hydrogen. It has the same number of protons and electrons as hydrogen but has 2 neutrons, whereas regular hydrogen does not have any. This makes tritium unstable and radioactive. It is produced naturally from interactions of cosmic rays with gases in the upper atmosphere. It can also be produced by man during nuclear weapon explosions, in reactors intended to produce tritium for nuclear weapons.

Option 3 is correct: It is the only radioactive isotope of hydrogen and like hydrogen it reacts with oxygen to form water. The transformation of tritium to tritiated water is a complex and slow process. Tritium is a colourless, odourless gas with a half-life of 12.3 years. As a liquid, tritium moves easily through the environment just like water. It occurs naturally in the environment in very low concentrations.

2. Solution (c)

Option 1 is incorrect: Dibru-Saikhowa National Park is a national park located in Dibrugarh and Tinsukia districts, Assam, India. It mainly consists of moist mixed semi-evergreen forests, moist mixed deciduous forests, canebrakes and grasslands. It is the largest salix swamp forest in north-eastern India, with a tropical monsoon climate with a hot and wet summer and cool and usually dry winter.

Options 2 and 3 are correct: It was designated a Biosphere Reserve by UNESCO in 1997. It is bounded by the Brahmaputra and Lohit Rivers in the north and Dibru River in the south. It is the only habitat of feral horses in India. It is an identified Important Bird Area (IBA) having more than 382 species of Birds, some of which are Greater Adjutant Stork, Lesser Adjutant Stork, Greater Crested Grebe.

Solution (d)

Option (d) is correct: Exercise SLINEX is a bilateral naval exercise between India and Sri Lanka, which was conceptualised in 2005. It has strengthened maritime cooperation between the nations over two decades. It aims at enhancing interoperability, maritime cooperation and exchanging best practices while jointly undertaking multi-faceted maritime operations.

Solution (a)

Option (a) is correct: Golden Dome is a ground- and space-based missile defence system designed to safeguard the United States from advanced missile threats. It aims to create a network of satellites to detect, track and potentially intercept incoming missiles. The shield could deploy hundreds of satellites for missile detection and tracking.

Solution (c)

Options 1 and 2 are correct: Ambergris, also known as ‘whale vomit’ is a solid, waxy substance produced in the digestive system of sperm whales (Physeter macrocephalus). It is extremely valuable and has been called the ‘treasure of the sea’ and ‘floating gold’.

Option 3 is correct: It is highly valued in the perfume industry as a fragrance enhancer. It is also used in traditional medicines and sometimes even as a spice in eastern cultures. There is a ban on the possession and trade of ambergris in countries like the USA, Australia, and India.