Answer: B

Explanation:

Iceberg A-83, initially observed near the Brunt Ice Shelf in the eastern Weddell Sea, originated from a crevice referred to as the "Halloween Crack." The Halloween Crack was first observed on 31 October 2016. Hence, statement 1 is incorrect.

Halloween Crack is located at the McDonald Ice Rumples, where the underside of the floating ice sheet is grounded on shallow seabed. Hence, statement 2 is correct.

The Halloween Crack slows down the flow of ice and causes fractures on the ice surface. It is adjacent to the precarious tip of the Brunt Ice Shelf. Hence, statement 3 is correct.

Answer: C

Explanation:

The India Meteorological Department (IMD) emphasized the landslide vulnerability in all cyclone bulletins, extending across the entire region, including Sikkim and northern West Bengal. Landslides encompass various forms of mass wasting, including rockfalls, mudflows, slope failures, and debris flows.

Landslides can be categorized into various types, including falls, topples, slides, spreads, flows and slope deformations. Each type can occur in both rock and soil, and they vary in characteristics and behaviors.

Falls: Involves the free-fall movement of isolated blocks or chunks of soil.

Topple: Characterized by blocks rotating away from a vertical face.

Slide: Material moves over inclined surfaces or shear zones while remaining intact.

Spread: Subsidence occurs as a layer of material cracks, opens up, and expands laterally.

Flow: Movement of fluidized material, either dry or rich in water, exhibiting fluid-like behavior.

Slope deformation: Slow, distributed movements affecting entire mountain slopes or portions thereof.

Hence, all pairs are correctly matched.

Answer: C

Explanation:

Recently, mountaineer and cricketer Kabak Yano made history by becoming the first woman from the Nyishi tribe in Arunachal Pradesh to successfully summit Mount Everest. Hence, statement 1 is correct.

The Nyishi tribe is one of the major indigenous communities in Arunachal Pradesh. Historically, the Nyishi tribe practiced shifting cultivation (jhum cultivation) and hunting-gathering. Hence, statement 2 is correct.

In Nyishi tribe most of the men have more than one wife (Polygyny), and their important festival is called Longte. Hence, statement 3 is correct.

Answer: D

Explanation:

Recently, the Defence Research and Development Organisation (DRDO) successfully flight-tested the RudraM-II from Su-30 MK-I platform of the Indian Air Force in Odisha. RudraM-II, air-to-surface missile was launched from the Su-30 MK-I platform of the Indian Air Force (IAF). RudraM-II is an indigenously-developed solid-propelled air-launched missile system meant for Air-to-Surface role to neutralise many types of enemy assets. Hence, statements 1 and 2 both are correct.

Answer: B

Explanation:

Recently, the Vice-President of India paid floral tribute to former Prime Minister Chaudhary Charan Singh on his death anniversary at Kisan Ghat in New Delhi.  Chaudhary Charan Singh (23 December 1902-29 May 1987), a prominent Indian politician, freedom fighter and fifth Prime Minister of India was born at Noorpur in Meerut district of Uttar Pradesh. His government implemented the Zamindari Abolition Act and Land Ceiling Act to redistribute land to landless farmers, aiming to address rural poverty and inequality. He was honoured with India's highest civilian award Bharat Ratna in 2024 for his contributions to agriculture sector especially in Uttar Pradesh. Hence, option (b) is correct.