What is the barter system?

The barter system is the exchange of goods for other goods without the use of money. For example, exchanging a bag of rice for clothes.

What are primary occupations?

Primary occupations involve extracting or producing raw materials from nature. Examples: agriculture, fishing, mining, cattle rearing, forestry.

What are secondary occupations?

Secondary occupations involve converting raw materials into finished goods through manufacturing. Examples: cotton textiles, sugar mills, iron and steel industries.

Savings is the portion of income that is left after consumption, kept aside for future needs.

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Economics — An Introduction: Exercise Solutions

Use this page alongside the official Samacheer Kalvi textbook. Solve every exercise question on your own first, then check the solutions below.

I. Fill in the Blanks

1. The producers of food grains are farmers 2. Collection of honey is a Primary occupation 3. The conversion of raw materials into finished goods is called manufacturing 4. According to Gandhiji the villages are the backbone of the nation 5. The percentage of population in the cities of Tamil Nadu is 47 Percent

II. Match the Following

#	Column A	Column B	Match
1	Cattle rearing	(a) Secondary occupation	Primary occupation
2	Food processing	(b) Services (Tertiary)	Agro-based / Secondary occupation
3	Iron and Steel Industry	(c) Agro-based industry	Secondary occupation
4	Telephone	(d) Primary occupation	Services (Tertiary occupation)
5	Cotton Industry	(e) Marine-based industry	Agro-based industry

ExplanationCattle rearing is a primary occupation (extracting from nature). Food processing and Iron & Steel are secondary (converting raw materials into finished goods). Telephone/Communication is a tertiary/service occupation. Cotton Industry is agro-based (uses agricultural raw materials).

III. Match and Find the Odd Pair

#	Correct Pair	Odd One Out
1	Small scale Industry — Cattle rearing	Transaction of Money (Odd — it belongs to banking/services, not small-scale industry)
2	Forest based Industries — Paper Industries	Information Technology (Odd — IT is a service/tertiary occupation, not forest-based)
3	Services — Information Technology	Paper Industries (Odd — paper industry is secondary, not a service)
4	Banking — Transaction of Money	Cattle rearing (Odd — cattle rearing is primary, not banking/service)

IV. Choose the Correct Answer

Q1. Agriculture is a ______ occupation.

(a) Primary
(b) Secondary
(c) Tertiary
(d) None of these

Answer(a) Primary ✓

Agriculture involves cultivating crops and extracting produce from nature, which is a primary occupation.

Q2. Economic activities are divided on the basis of ______

(a) location
(b) use
(c) income
(d) population

Answer(b) use ✓

Economic activities are classified as primary, secondary, and tertiary based on the use or nature of the activity.

Q3. Sugar Industries are a ______ activity.

(a) Primary
(b) Secondary
(c) Tertiary
(d) None of these

Answer(b) Secondary ✓

Sugar industries convert raw sugarcane (a primary product) into sugar, which is a manufacturing/secondary activity.

Q4. Agro-based industry — ______

(a) Iron and Steel
(b) Cement
(c) Cotton
(d) Aluminium

Answer(c) Cotton ✓

Cotton is an agro-based industry because cotton is an agricultural product. Iron and Steel, Cement, and Aluminium are mineral-based industries.

Q5. Dairy farming is a ______ sector.

(a) Private
(b) Co-operative
(c) Public
(d) Joint

Answer(b) Co-operative ✓

Dairy farming in India largely operates under the co-operative sector (e.g., Amul, Aavin), where farmers form co-operative societies to process and sell milk.

V. Very Short Answer Questions

Q1. Define Sandhai.

AnswerIn villages, once in a week or month, things are sold in a particular place at a specific time to meet the needs of the people. This weekly or monthly market is called a Sandhai (or Shandy).

Q2. What is called the barter system?

AnswerThe system of exchanging goods for other goods without using money is called the barter system. For example, a person may exchange a bag of rice for enough clothes. The barter system was used before money was invented.

Q3. What is trade?

AnswerThe action of buying and selling goods and services is called trade. It is an important part of economic activity and can be local, national, or international.

Q4. What is Savings?

AnswerThe amount from the income which is left after consumption and kept aside for future needs is called savings. Savings help in times of emergency and can be invested for future growth.

Q5. What was the necessity for the invention of money?

AnswerWhen people exchanged commodities through the barter system, they faced problems in comparing the value of different goods. It was difficult to determine how much of one good was equal to another. To solve this problem of double coincidence of wants, people invented money as a medium of exchange.

VI. Short Answer Questions

Q1. What was the reason for the development of settlements near water bodies?

AnswerEarly humans learned to cultivate crops. When they found rivers that provided a steady supply of water for drinking, irrigation, and fishing, they settled down permanently near them. Water bodies also supported trade and transportation, making these areas ideal for permanent settlements.

Q2. What are called secondary occupations?

AnswerSecondary occupations involve the conversion of raw materials obtained from primary activities into finished products through machinery on a large scale. These are also called manufacturing activities.

Examples:

Cotton textiles (converting cotton into cloth)
Sugar mills (converting sugarcane into sugar)
Iron and steel industries (converting iron ore into steel)
Food processing industries

Q3. Name the city-centred industries.

AnswerCity-centred industries include:

Electronics
Shipbuilding
Aluminium
Chemical
Auto parts
Railways
Leather
Fertilizers

Q4. What are the three types of economic activities? Explain briefly.

Answer

Type	Description	Examples
Primary	Activities that extract or produce raw materials from nature	Agriculture, fishing, mining, forestry, cattle rearing
Secondary	Activities that convert raw materials into finished goods through manufacturing	Cotton textiles, sugar mills, iron and steel, food processing
Tertiary	Activities that provide services rather than goods	Transport, communication, banking, trade, education, healthcare

VII. Detailed / Long Answer Questions

Q1. What are the important primary occupations of your district?

AnswerPrimary occupations involve extracting or producing raw materials directly from nature. Important primary occupations include:

S.No.	Primary Occupation	Description
1	Agriculture	Cultivation of crops like paddy, sugarcane, cotton, and vegetables
2	Animal Husbandry	Rearing cattle, goats, poultry for milk, meat, and eggs
3	Fishing	Catching fish from rivers, lakes, ponds, and the sea
4	Forestry	Collecting forest products like timber, honey, wax, and medicinal plants
5	Mining	Extracting minerals like iron ore, bauxite, limestone
6	Grazing	Pastoral activities — moving livestock in search of pasture
7	Hunting and Gathering	Collecting wild fruits, roots, and other forest produce

(The specific primary occupations may vary depending on your district. Observe and list the ones relevant to your area.)

Q2. What are the manufacturing industries in your district?

AnswerManufacturing (secondary) industries convert raw materials into finished goods:

S.No.	Manufacturing Industry	Description
1	Food manufacturing	Rice mills, flour mills, oil extraction, sugar mills
2	Textile manufacturing	Cotton spinning, weaving, garment making
3	Leather and allied products	Leather tanning, footwear, bags
4	Wood product manufacturing	Furniture, plywood, paper
5	Metal manufacturing	Steel fabrication, hardware, tools
6	Machinery manufacturing	Agricultural equipment, pumps, motors

(The specific manufacturing industries may vary depending on your district.)

Q3. Classify industries on the basis of raw materials.

Answer

S.No.	Type of Industry	Raw Material Source	Examples
1	Agro-based industries	Agricultural products	Cotton textiles, sugar mills, jute industry, food processing
2	Forest-based industries	Forest products	Paper mills, furniture making, building materials, lac
3	Mineral-based industries	Minerals extracted from earth	Cement, iron and steel, aluminium, petrochemicals
4	Marine-based industries	Products from the sea	Seafood processing, fish canning, sea weed products

The classification is based on the type of raw material used. Agro-based industries use farm products, forest-based use forest products, mineral-based use minerals, and marine-based use ocean resources.

Q4. Explain the occupations in the service sector (tertiary occupations).

AnswerTertiary occupations provide services rather than goods. They support both primary and secondary sectors.

S.No.	Service Sector	Description
1	Transport	Roadways, Railways, Waterways, Airways — movement of goods and people
2	Communication	Post, Telephone, Information Technology — exchange of information
3	Trade	Procurement and selling of goods — wholesale and retail
4	Banking	Money transactions, loans, savings accounts, financial services
5	Education	Schools, colleges, universities — imparting knowledge
6	Healthcare	Hospitals, clinics, pharmacies — providing medical services
7	Government Services	Administration, police, defence, public utilities
8	Tourism	Hotels, travel agencies, guides — serving tourists

The service sector is the fastest-growing sector in India and contributes significantly to the GDP.

Q5. What are the features of cities?

Answer

S.No.	Feature	Description
1	Employment opportunities	More job opportunities than villages — in industries, services, IT, and trade
2	Small-scale workers	Large number of small-scale and informal sector workers
3	Infrastructure	Well-paved roads, ports, airports, and railway stations that support trade and transport
4	Banking	Many branches of banks that help in circulation of money and boost the economy
5	Medical services	Advanced medical services and hospitals are easily available
6	Education	Schools, colleges, and universities provide quality education
7	Communication	Better telecommunication and internet connectivity

VIII. Fill in the Tabular Column

Occupations in Villages	Occupations in Cities	Occupations in Villages & Cities
Farming	Engineer	Carpenter
Grazing/Herding	Scientist	Teacher
Blacksmith	Musician	Weaver
Pottery	Journalist	Self-employed
Water Bearer	Doctor	Marketing

IX. Additional Important Questions

Q1. Differentiate between needs and wants.

Answer

Aspect	Needs	Wants
Definition	Things that are essential for survival	Things that are desired but not essential for survival
Examples	Food, water, shelter, clothing	Television, mobile phone, car, jewellery
Nature	Limited in number	Unlimited in number
Priority	Must be fulfilled first	Can be fulfilled after needs

Q2. What is scarcity? How does it relate to economics?

AnswerScarcity refers to the gap between limited resources and unlimited wants. Since resources (like land, labour, water, and money) are limited, but human wants are unlimited, we cannot satisfy all our wants. Economics studies how people make choices to use scarce resources efficiently to satisfy as many needs and wants as possible.

Q3. Explain the evolution of money.

Answer

Stage	System	Description
1	Barter System	People exchanged goods for goods directly. Problem: Double coincidence of wants — both parties must want what the other has.
2	Commodity Money	Certain commodities like cattle, grains, shells, and salt were used as a medium of exchange.
3	Metallic Money	Metals like gold, silver, and copper were used as coins. They were durable, divisible, and universally accepted.
4	Paper Money	Governments issued paper currency (notes) backed by gold reserves. Easier to carry than metal coins.
5	Modern Money	Currency notes and coins, cheques, debit cards, credit cards, digital payments (UPI, mobile wallets).

Sher Shah Suri introduced the Rupiya in the 16th century, which later became the Indian Rupee.

Q4. Write a short note on Gandhiji's view on villages.

AnswerMahatma Gandhi believed that "Villages are the backbone of the nation." He emphasised:

India lives in its villages — the majority of the population depends on agriculture and rural occupations
Village self-sufficiency (Gram Swaraj) was his ideal
He promoted cottage industries like spinning (charkha), handloom, and handicrafts
He believed that if villages prosper, the nation prospers
He advocated for the development of rural areas to reduce poverty and dependence on cities

Common Mistakes to Avoid

1. Confusing primary, secondary, and tertiary occupations. Primary = extracting from nature (farming, fishing, mining). Secondary = manufacturing (textiles, steel, sugar). Tertiary = services (banking, transport, IT).

2. Calling agriculture a "secondary" occupation. Agriculture is a primary occupation because it involves extracting/producing from nature. Food processing (converting crops into packaged food) is secondary.

3. Confusing "agro-based" with "primary." Agro-based industries (cotton textiles, sugar mills) are secondary occupations because they process agricultural raw materials into finished goods. The farming that produces the raw material is primary.

4. Mixing up cattle rearing and dairy farming. Cattle rearing = primary occupation (raising animals). Dairy farming co-operative = co-operative sector (organisation of dairy farmers).

5. Forgetting to mention the barter system's main problem. The key problem of the barter system is "double coincidence of wants" — both parties must want what the other has. Money was invented to solve this.

6. Confusing savings with income. Income is the total money earned. Savings is the portion left after consumption — it is not the same as income.

7. Writing "cotton industry" as a primary occupation. The cotton industry is a secondary occupation (agro-based industry). Growing cotton is primary; manufacturing cotton cloth is secondary.

Exam Checklist

Before your exam, make sure you can:

[ ] Define economics — the study of how people use limited resources to satisfy unlimited needs and wants
[ ] Explain the three types of economic activities: Primary, Secondary, and Tertiary — with examples for each
[ ] Define the barter system and explain its main problem (double coincidence of wants)
[ ] Explain the evolution of money: Barter → Commodity → Metallic → Paper → Modern money
[ ] Define savings — the portion of income left after consumption
[ ] Define Sandhai (weekly/monthly village market) and trade (buying and selling)
[ ] Classify industries by raw materials: Agro-based, Forest-based, Mineral-based, Marine-based — with examples
[ ] List features of cities (employment, infrastructure, banking, medical services)
[ ] Differentiate between occupations in villages, cities, and both
[ ] Explain why settlements developed near water bodies
[ ] Recall Gandhiji's view: "Villages are the backbone of the nation"
[ ] Identify the odd one out in matching exercises (primary vs secondary vs tertiary)

Frequently Asked Questions

Economics is the study of how people use limited resources to satisfy their unlimited needs and wants. It deals with production, distribution, and consumption of goods and services.