Questions

The outer most electrons that are free to move are called valency electrons that are responsible for the conductivity in the metal atoms.

Many types of renewable energy resources such as wind and solar energy are constantly replenished and will never run out.

The concept of carbon credit for manufacturers originated with the Kyoto Agreement (Protocol) of 1997.

Handwritten wills are also known as Holographic wills since they are made by the persons called testators without notary or any witness.

Makaibari is the world's first tea factory and was established in 1859 in Darjeeling, West Bengal. 

It is most expensive tea in India which costs around 1.12 lakhs for 1 kg of tea.

Hence, Makaibari is the costliest variety of Tea.

A UPS (Uninterruptible Power Supply) is a device that provides battery backup when the electrical power fails or drops to an unacceptable voltage level.

Small UPS systems provide power for a few minutes; enough to power down the computer in an orderly manner, while larger systems have enough battery for several hours.