The ‘Preamble’ of the Constitution of India is a brief introductory statement that sets out the guiding purpose and principles of the document, and it indicates the source from which the document which derives its authority, meaning, the people. The ‘Preamble’ of the Constitution of India is a brief introductory statement that sets out the guiding purpose and principles of the document, and it indicates the source from which the document which derives its authority, meaning, the people. It was adopted on 26 November 1949 by the Constituent Assembly and came into effect on 26th January, 1950.

Liberty. There are no unreasonable restrictions on the citizens in what they think, how they wish to express their thoughts and the way they wish to follow up their thoughts in action.
Equality. All are equal before the law. The government should ensure equal opportunity to all.

Republic. The head of the state is an elected person and not a hereditary position.

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Republic, form of government in which a state is ruled by representatives of the citizen body. Modern republics are founded on the idea that sovereignty rests with the people, though who is included and excluded from the category of the people has varied across history. In Unitary Republics, divisions, if any, are governed as one unit with one legislature. For example, Ireland is a unitary republic. Islamic Republics are countries with a theocracy that allow the people power and have a constitution based on Islamic law. Mauritania is an example of an Islamic republic.

The word socialist was added to the Preamble of the Indian Constitution by the 42nd amendment act of 1976, during the Emergency. It implies social and economic equality. Social equality in this context means the absence of discrimination on the grounds only of caste, colour, creed, ***, religion, or language. India is a liberal democracy that has been ruled by non-socialist parties on many occasions, but its constitution makes references to socialism.

Sovereign- It means people have the supreme right to take decisions on internal as well as external matters. No external power can dictate the government of India.

The constitution of a country is a compact document consisting of the supreme laws of that country which decide the composition, powers and functions of the Government as well as the rights and duties of citizens. It is according to the constitution that the government of the country is formed and its work is conducted.

Case study is another important technique to understand human behaviour. It is an attempt to explore, in some considerable depth, the behaviour and experiences of an individual. These are based on data generated by different methods e.g., Interview, Observation, Questionnaire and Psychological tests. Case studies are developed of individuals, organisations, small group of individuals, institutions and specific events.

Growth in biological terms is characteristic feature of all living organisms. It relates to increase in size by accumulation of protoplasm in the cell thus results in increase in size of the cell. Whereas increase in number in number of cell by cell division results is the size of individual organism.
Snow is an inanimate (non-living) object, while rolling over snow, it gathers more snow on its surface thus, it increases in size by physical phenomenon but not by biological phenomenon. So, this growth cannot be compared to that seen in living organisms.

The division:
(i) The division of the year into 12 months according to the revolution of the moon around the earth, the division of the month into four weeks, the day into 24 hours, and the hour into 60 minutes - all that we take for granted in our daily lives has come to us from the Mesopotamians.
(ii) These time divisions were adopted by the successors of Alexander and from there transmitted to the Roman world, then to the world of Islam, and then to medieval Europe.

(iii) Whenever solar and lunar eclipses were observed, their occurrence was noted according to year, month and day. So too there were records about the observed positions of stars and constellations in the night sky.

The poet ( Khushwant Singh ) describes his grandmother as Short ,fat and a little Stooped. He also describes her as being not pretty in the traditional sense but her serenity made her beautiful as she always used to chant silent prayers from beads of rosary. She was always in spotless white.

Malpighian body is the part of a nephron in the kidney. It consists of its cup-shaped end together with the glomerulus that it encloses. The Malpighian body filtrates the blood and separates waste from the blood.

Martin Luther is one of the most influential figures in Western history. His writings were responsible for fractionalizing the Catholic Church and sparking the Protestant Reformation. The renaissance and reformation had made a big change in Europe because of Martin Luther had made that change from his 95 Theses. People had followed him in what he was saying to the Church and the Church was getting mad so the Church had kicked Martin Luther because he was making a change the Church wasn't ready for.

Partnership can be classified on the basis of:
1.Duration
2.Liability
Classification on the basis of duration:
(i)Partnership at will : The existence of this partnership depends on the will of the partners. The business of the firm continues as long as the partners desire and is terminated when any partner gives a notice for dissolution of the firm.
(ii)Particular partnership : It is the partnership which is formed for completing only a particular project or any activity to be carried on for a specified period of time only. This partnership is automatically dissolved on completion of the project or activity.
Classification on the basis of liability:
(i)General partnership: The partnership in which the liability of the partners in unlimited is called general partnership. In this type of partnership, partners have the right to take part in the management of the firm. Each partner as well as the firm is bound by the acts of all the partners. It is optional for the firm to get itself registered. Death, insolvency, retirement or lunacy of any partner adversely affects the existence of the firm.
(ii)Limited partnership : Limited partnership is the partnership in which the liability of at least one member is unlimited while others have limited liability. The members with limited liability neither have the rights to participate in the management of the business nor are their acts binding on other partners or the firm. It is compulsory to register such partnership.

Physical education is a course taught in school that focuses on developing physical fitness and the ability to perform and enjoy day-to-day physical activities with ease.
Aim of physical education, like general education, is to develop human personality in its totality well planned activity programs. 
Objectives of Physical Education - Objectives are steps considered towards the attainment of the aim. They are the particular and precise means employed to realize an aim. 

A food group is a collection of foods that share similar nutritional properties or biological classifications. List of nutrition guides typically divide foods into food groups and Recommended Dietary Allowance recommend daily servings of each group for a healthy diet.

1 Carbohydrates. 

2 Protein. ...

3 Dairy products. ...

4 Fruit and vegetables. ...

5 Fats and sugars.