General Knowledge: Geography & Science

Parliament adopted amendments to the Ancient Monuments and Archaeological Sites and Remains Act 1958 to better protect national heritage. The Anti-Hijacking Act and Foreign Educational Institutions Bill were different legislative matters discussed around that time.

INS Vishwast is an Offshore Patrol Vessel (OPV) commissioned into the Indian Coast Guard in 2010. OPVs are used for maritime surveillance, patrol, and law enforcement in exclusive economic zones. It is not an aircraft carrier or anti-tank missile.

JRC stands for Joint River Commission, an bilateral mechanism between India and Bangladesh for sharing water of common rivers. It deals with water management, flood control, and river basin development. Joint Resource Committee and Joint River Committee are not the correct expansions.

When a spring is compressed or stretched, it exerts a force that tries to bring it back to its original length. This restoring force is proportional to the displacement (Hooke's Law). Potential and gravitational forces are different physical concepts, and spring force is what creates the restoring effect.

Echoes are produced when sound waves reflect off a hard surface and return to the listener after a delay. The sound must travel a minimum distance to create a perceptible echo. Refraction, polarisation, and diffraction are other wave phenomena but do not cause echoes.

Laika, a Soviet dog, was the first animal to orbit the Earth aboard Sputnik 2 in 1957. While other animals had been sent on suborbital flights earlier, Laika holds the distinction of being the first living creature to orbit our planet, though she did not survive the mission.

The Amazon River is widely recognized as the second-longest river in the world, with approximately 6,400 kilometers (3,976 miles) in length. The Nile River is the longest at around 6,650 kilometers (4,130 miles). The Ganga (Ganges) is not among the top three longest rivers. However, some recent measurements suggest the Amazon might actually be longer than the Nile, making this a debated topic in geography.

Angel Falls (Salto Ángel) in Venezuela is the highest uninterrupted waterfall in the world, with a height of 979 meters (3,212 feet) and a plunge of 807 meters. It is located in the Canaima National Park. Jog Falls is a major waterfall in India but not the highest. There is no major waterfall known as 'Amazon falls' - this appears to be a distractor.

Indonesia is the largest island country in the world, comprising over 17,000 islands with a total land area of approximately 1.9 million square kilometers. Greenland is the largest island but is an autonomous territory within Denmark, not an independent country. India is not primarily an island nation (it is a peninsula).

Greenland is the world's largest island, covering approximately 2.16 million square kilometers. It is located between the Arctic and Atlantic Oceans and is an autonomous territory within the Kingdom of Denmark. Iceland is much smaller at about 103,000 square kilometers. Indonesia is a country comprising many islands, not a single island.

Krubera Cave (also known as Voronya Cave) in Georgia is the deepest known cave in the world, with a depth of 2,197 meters (7,208 feet). It is located in the Arabika Massif. 'Arab' appears to be a garbled reference to Arabika, and 'Shark cave' seems to be a distractor option with no factual basis.