[Mission 2024] Current Affairs Quiz , 8 August 2023

Solution: b)

Statement 2 is incorrect.

A current is nothing but the movement of charged particles, electrons in most cases, in a particular direction. When the electrons move, they collide, and interact, with other atoms in the material.

The movement is not entirely smooth, it encounters resistance which, as of now, is an essential property in electrical conductivity. Resistance involves a loss of energy, mostly in the form of heat. Part of the reason why electrical appliances get heated is this resistance.

Elimination of this resistance can result in super-efficient electrical appliances, removal of transmission losses in power cables, and massive gains in energy. 

Source

Solution: a)

Only Statement 2 is correct.

Superconductivity refers to a state in which a material offers zero, or near-zero, resistance to electric current. 

Superconducting materials show very interesting behaviour under magnetic field which allows the functioning of systems like the MRI scan machine and the superfast Maglev trains that float above the tracks. 

As of now, superconductivity can be achieved only at very low temperatures, more than 250 degree Celsius below zero, very close to absolute zero which is – 273 degree Celsius.

Source

Solution: b)

Statement 1 is incorrect.

Tiger census report, prepared by the Wildlife Institute of India (WII), Dehradun and the National Tiger Conservation Authority.

India has 53 tiger reserves, with M.P. accounting for six of them. While the State has the most tigers, the most populous reserves are the Corbett National Park (CNP), Uttarakhand, followed by the Bandipur and Nagarhole reserves in Karnataka.

Source

Solution: d)

The forest department of Madhya Pradesh has demonstrated remarkable commitment and success in active management practices. They have effectively restored low-density areas through incentivised voluntary village relocations, prey supplementation, reintroduction of species such as Barasingha (swamp deer) to new habitats like Satpuda and Bandhavgarh, and the reintroduction of Gaur to Bandhavgarh and Sanjay-Dubri Tiger Reserves. Prey species like chital (spotted deer) have been successfully supplemented in Satpuda, Sanjay Tiger Reserves, Nauradehi, Kuno, and Gandhisagar Wildlife Sanctuaries through translocation from high-density areas such as Pench and Bandhavgarh Tiger Reserves.

Source

Solution: a)

Only statement 1 is correct.

Space debris can include natural space debris such as meteoroids, or man-made ones which can include defunct spacecrafts and satellites, stages of rockets which have launched payloads, dead satellites, satellite explosions and collisions.

Most pieces of space debris burn up as they enter the Earth’s atmosphere, the process starting from around a height of 100 km from Earth’s surface to 20 km. However, sometimes, very heavy pieces may not burn completely, and some part of the object may make it down to the surface, either hitting a landmass or a waterbody.

Under the Convention on International Liability for Damage Caused by Space Objects, countries can claim compensation from other countries for damages incurred from space debris.