Migration — Class 9 Social Science (Samacheer Kalvi)
TN State Board (Samacheer Kalvi) Class 9 Social Science, Economics — Chapter 5. Why people move and what happens when they do.
1. About this lesson
Migration is the movement of people from one place to another. This chapter covers the types, causes, and consequences of migration with special reference to Tamil Nadu.
2. What is Migration?
Movement of people from one place to another intending to settle temporarily or permanently.
Types of Migration
| Classification | Types |
|---|---|
| By distance | Internal (within country) / International (across countries) |
| By direction | Rural → Urban (most common), Urban → Rural, Rural → Rural |
| By duration | Temporary, Permanent, Seasonal |
| By willingness | Voluntary / Forced (conflict, disaster) |
3. Push and Pull Factors
| Push (drive away) | Pull (attract) |
|---|---|
| Poverty, unemployment | Better jobs, higher wages |
| Lack of education, healthcare | Better schools, hospitals |
| Natural disasters, drought | Safe environment |
| Conflict, violence | Peace, stability |
4. Consequences of Migration
Positive
- Remittances: Money sent home boosts local economy.
- Fills labour gaps in destination areas.
- Reduces pressure on resources in source areas.
- Cultural exchange.
Negative
- Brain drain: Loss of skilled people from source regions.
- Overcrowding in cities → slums, pressure on services.
- Family separation, social costs.
- Exploitation of migrant workers.
5. Migration in Tamil Nadu
- TN is both a source and destination.
- Rural → urban migration to Chennai, Coimbatore, Madurai, Tiruppur.
- TN workers migrate to Gulf countries (UAE, Saudi Arabia, Qatar) for employment.
- Remittances from Gulf workers are significant for TN's economy.
6. Worked examples
Example 1. What are remittances? Money sent home by migrants to their families.
Example 2. Give one push and one pull factor. Push: Unemployment. Pull: Better jobs.
Example 3. What is brain drain? Loss of skilled/educated people to other countries.
7. Book-back questions (Samacheer Kalvi)
I. Choose the correct answer
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Movement from village to city is — (a) Urban to Rural / (b) Rural to Urban / (c) International / (d) Seasonal. Ans: (b).
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A push factor of migration is — (a) Better education / (b) Higher wages / (c) Poverty / (d) Good healthcare. Ans: (c) Poverty.
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Money sent home by migrants is called — (a) Income / (b) Profit / (c) Remittance / (d) Investment. Ans: (c).
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Loss of skilled people to other countries is — (a) Immigration / (b) Emigration / (c) Brain drain / (d) Population. Ans: (c).
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TN workers migrate to Gulf countries mainly for — (a) Education / (b) Tourism / (c) Employment / (d) Agriculture. Ans: (c) Employment.
II. Fill in the blanks
- Movement within the same country is internal migration.
- Lack of jobs is a push factor.
- Migration for harvest season is seasonal migration.
- Money sent home by migrants is remittance.
- Loss of talent through migration is brain drain.
III. Match the following
| Column A | Column B |
|---|---|
| Rural to Urban | Most common migration type |
| Remittance | Money sent home |
| Brain drain | Loss of skilled people |
| Push factor | Poverty, unemployment |
| Gulf countries | TN worker destination |
IV. Answer briefly
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What is migration? — Movement of people from one place to another to settle temporarily or permanently.
-
Push and pull factors — Push: poverty, unemployment, disasters, conflict. Pull: jobs, education, healthcare, safety.
-
Positive consequences — Remittances boost economy, fill labour gaps, reduce pressure on source areas.
-
Negative consequences — Brain drain, urban overcrowding, slums, family separation, exploitation.
V. Answer in detail
-
Explain the types of migration.
- Internal (within country) vs International (across countries).
- Rural → Urban (most common), Urban → Rural.
- Temporary, Permanent, Seasonal.
- Voluntary vs Forced (war, disaster).
-
Discuss consequences of migration with reference to TN.
- Economic: Remittances from Gulf → boost TN economy. Rural→urban fills labour gaps in cities.
- Social: Family separation; urban overcrowding in Chennai, Coimbatore.
- Brain drain: Skilled workers leaving India.
- Positive: Remittances, skill transfer, reduced pressure on rural resources.
8. Common mistakes
- Mistake: Internal migration = moving to another country. Fix: Internal = within country. International = across countries.
- Mistake: Education is a push factor. Fix: Lack of education = push. Good education = pull.
- Mistake: Brain drain is beneficial to the source country. Fix: Brain drain harms the source country — it loses skilled talent.
9. Quick revision
- Economics Ch 5 · Migration.
- Types: Internal/International, Rural→Urban (most), Temporary/Permanent/Seasonal, Voluntary/Forced.
- Push (poverty, unemployment) vs Pull (jobs, education).
- Consequences: Remittances (+), Brain drain (−), Urban overcrowding (−).
- TN: Gulf migration → remittances; internal → Chennai, Coimbatore.
