In thermodynamics, heat means energy which is moved between two things when one of them is hotter than the other. That is, heat is defined as a spontaneous flow of energy (energy in transit) from one object to another, caused by a difference in temperature between two objects; therefore, objects do not possess heat. Heat and work are two different ways of transferring energy from one system to another.

The Calico cloth was referred to the cloth made in Calicut. 
The Calico Acts were passed in 1690–1721. They came into being mainly because of the threat caused to the domestic English textile industry from the Indian and Chinese textile imports. 
The Calico cloth generally referred to the printed cotton textiles – chintz 

• Electroplating is used on car parts with a thin layer of chromium for a smooth texture and appearance. They are also done on various other appliances customized according to the buyer’s request.
• As metals are prone to natural effects such as corrosion, a thin layer of non-corrosive metals covering the corrosive one can help metals and appliances last longer than usual. The non-corrosive metals such copper, chromium and nickel are basically used these days to spread over corrosive metals like steel and iron.
• Electroplating can be used in other areas where we can reduce friction by introducing a certain kind of metal over another.
• Electroplating also helps to protect from radiation, abrasion and many other natural phenomena just by imparting the desired characteristics to a surface of the metals which lacks those properties.

• Socially marginalised: In the social environment, groups of people or communities may have the experience of being excluded.
• This can be because they speak a different language, follow different customs or belong to a different religious group from the majority community.
• They may also feel marginalised because they are poor, considered to be of ‘low’ social status and viewed as being less human than others.
• Economic, social, cultural and political factors work together to make certain groups in society feel marginalised

Political cause
The main cause of popular discontent was the british policy of economically exploiting India . This affected all sections of society .

(1) Religious cause: A major cause of the uprising was fear among the people that the company wanted to convert all Indians to Christianity . The christian missionaries were very active at that time .

(2) Military cause: Indian soliders or "sepoys'' formed the bulk of the company's army in India. As they were a part of society , they too suffered the consequences of oppresive British rule.

(3) Social cause: The British passed law of banning sati and legalising widow remarriage . However, Indias were not allowed to travel in 1st class compartments in trains .

(4) Immediate cause: There was widespread discontentment against the british rule . By , 1857 , the stage was set for a massive outbreak . Only a spark was needed to set the country ablaze . A rifle catridge provided that spark.

When an acid and a base are placed together, they react to neutralize the acid and base properties, producing a salt. The H(+) cation of the acid combines with the OH(-) anion of the base to form water. The compound formed by the cation of the base and the anion of the acid is called a salt. A gas evolution reaction is a chemical process that produces a gas, such as oxygen or carbon dioxide. In the following examples, an acid reacts with a carbonate, producing salt, carbon dioxide, and water, respectively.

Tagore was of the view that creative learning could be encouraged only within a natural environment. So he chose to set
up his school 100 kilometres away from Calcutta, in a rural setting. He saw it as an abode of peace (santiniketan), where
living in harmony with nature, children could cultivate their natural creativity.