The occupations in the service sector:
(i) Transport - roadways, railways, waterways, airways
(ii) Communication - Post, Telephone, Information Technology etc
(iii) Trade - Procurement of goods, selling.
(iv) Banking - Money transactions, banking services

Classification of Natural Resources:
Natural resources can be classified into different groups depending on origin, development, renewability, distribution, ownership etc
ON THE BASIS OF ORIGIN:
On the basis of origin, resources can be classified into biotic and abiotic resources.
(i) All living resources are biotic resources, plants, animals and other micro organisms are biotic resources.
(ii) Abiotic resources are non-living things. Land, water, air and minerals are abiotic resources.
ON THE BASIS OF DEVELOPMENT:
Based on the level of development, resources can be divided into actual and potential resources.
(i) Actual resources are resources that are being used and the quantity available is ' known. (e.g.) Coal at Neyveli.
(ii) Potential resources are resources that are not being used in the present and its quantity and location are not known. The technology to extract such resources is also yet to be developed. (e.g.) Marine yeast found in the Bay of Bengal and Arabian Sea.
ON THE BASIS OF EXllAUSTFFILLITY:
On the basis of renewability resources can be classified as renewable resources and nonrenewable resources.
(i) Resources once consumed can be renewed with the passage of time are called renewable resources. (e.g.) Air, Water, Sunlight. Misuse of such resources can also limit its available quantity. So, they have to be used wisely.
(ii) Natural resources which are limited can be called non-renewable resources. They become exhausted after use and the time they take to replace does not match the life cycle. (e.g.) Coal, petroleum, natural gas and other minerals.

The Causes for the Rise of Magadha
(i) Magadha was located onthe lower part of the Gangetic plain. The plain was fertile which ensured the rich agricultural yield. This provided regular and substantial income to the state.
(ii) The thick forests supplied timber for construction of buildings and elephants for army.
(iii) Abundance of natural resources especially iron enabled them to equip themselves with weapons made of iron.
(iv) Growing trade and commerce facilitated movement of people as well as settlement of people in centres of arts and crafts.
(v) The outcome was urbanization and emergence of Magadha as an empire.

Influence of Jainism [Samanam] in Tamil Nadu:
(i) In ancient Tamil literature, Jainism is referred to as Samanam.
(ii) There is a Samanar Hill or Samanar Malai in Keelakuyilkudi village, 15 km away from Madurai. The images of Tirthankaras created by Jain monks are found in the hill. It is a protected monument of Archaelogical Survey of India.
(iii) In Arittapatti, a small village 25 km from Madurai, on one side of Kalinjamalai hill there are Jain caves called Pandvar Padukka Pandavar Padukkai is the bed of Jain saints. This is the influence of Buddhism in Tamil Nadu.
(iv) Manimegalai, one of the epics of the post Sangam age is a Buddhist literature.
(v) Kanchipuram was a famous Buddhist Centre from where Dinnaga, the famous Buddhist logic logician, and Dharmapala, a great scholar of Nalanda University hailed.

Jain code of Conduct:
Mahavira asked his followers to live a virtuous life. In order to live a life filled will sound morals, he preached five major principles to follow.
They are:
(i) Ahimsa - not to injure any living beings.
(ii) Satya - to speak the truth.
(iii) Asteya - not to steal.
(iv) Aparigraha - not to own Property
(v) Brahmacharya - Celibacy.

Status of women in Rig Vedic Period:
(i) In Rig Vedic society, women relatively enjoyed some freedom.
(ii) The wife was respected as the mistress of the household.
(iii) She could perform rituals in her house.
(iv) Child marriage and sati were unknown.
(v) There was no bar on the remarriage of widows.
(vi) Nevertheless, the women were denied right.to inherit property from their parents.
(vii) They played no role in public affairs.
Later Vedic period:
(i) In the later Vedic period the role of women in society, as well as their status, even within the family, declined.
(ii) Women could no longer perform rituals in the family.
(iii) The rules of marriage became much more rigid.
(iv) Polygamy became common.
(v) Widow remarriage was not encouraged.
(vi) Education was denied to women.
(vii) lntercaste marriages were spurned.

Arthasastra and Indica are the main literary sources for the study of Mauryan Period.

(i) There are duties respecting the National flag and National Anthem. 
(ii) Respect and protect the Constitution, follow our great leaders who fought for our freedom, to protect our country, readiness to serve our country if necessary, treating everyone as brothers irrespective of their castes, religions, languages, races etc., to conserve our ancient heritage, and conserve natural elements like forests, rivers and lakes and fauna to develop science, humanity and feelings of reformation to avoid non-violence and Protect government property, parents or guardians providing educational opportunities to children between 6-14 years etc., have been added as our duties

(i) Automobile industry
(ii) Manufacturing industry
(iii) Iron and steel industry
(iv) Textile industry
(v) Banking, etc.

(i) A system of exchanging goods for other goods, called barter system.
(ii) For example, exchange a bag of rice for enough clothes.

(i) In villages, once in a week or month, all things are sold in a particular place at a specific time to meet the needs of the people.
(ii) That is called "Sandhai".

(i) The symbol of rupees is Rs.
(ii) This was designed by D. Udhayakumar from Tamil Nadu in the year 2010.

(i) Abiotic resources are non-living things.
(ii) Land, water, air and minerals are abiotic resources.

Individual resources are resources privately owned by individuals. (e.g.) Apartments.

Resources once consumed can be renewed with the passage of time are called renewable resources. (e.g) Air, Water, Sunlight.

d) Both 1 and 2 follow

Haryanka - Sishunaga – Nanda - Maurya

b. Both A and R are true but R is not the correct explanation of A.

Brahmacharya - married status