Questions

"Cuba" is the name of the country which was commonly known as the "Sugar Bowl of the World".

It is called by this name because formerly it was the largest producer of Sugar, but now Brazil is currently the largest producer of Sugar.

It is an island country in the Caribbean and is officially called as the Republic of Cuba.

Lord Dalhousie was appointed as Governer General of India from 1848–1856. The first railway line connecting Bombay and Thane was laid under his authority in 1853 and is known as the maker of Modern India. He made way For Telegraph Services in India. 

He is also called as Father of Indian Railways.

Tips :

Leaders develop ownership by involving employees in the decision-making and planning process. They provide resources to facilitate employee success and empower employees by devolving authority to get things done efficiently. Effective leaders develop processes that engage employees in achieving the strategic vision. 

Biodegradable substances can be broken down into simpler, harmless substances in nature with due course of time by the biological process such as action of microbes. They can be recycled as a part of food chain.

Here, Leather bags are biodegradable.

Hawai

A Slip ring is a ring in a dynamo or electric motor which is attached to and rotates with the shaft, passing an electric current to a circuit via a fixed brush pressing against it.

Slip rings are usually made of Phosphor Bronze.

Slip ring motors usually have a 'phase-wound' rotor. This type of rotor has a 3-phase, double-layer, distributed winding consisting of coils used in alternators. The rotor core is made up of steel laminations which have slots to accommodate formed 3-single phase windings.