NCERT Class 8 Social Science Exploring Society India and Beyond Part-II: Chapter 6 — Dynamics of Population
This chapter, 'Dynamics of Population,' from NCERT's Class 8 Social Science book 'Exploring Society: India and Beyond Part-II,' introduces the concept of demography. It explains that demography is the study of the human population's characteristics, such as age, gender, education, occupation, and religion, and how these change over time due to births, deaths, and migration. The chapter highlights the importance of understanding population structure for effective government planning of infrastructure and services like schools, hospitals, and housing. It also notes how businesses use demographic data to understand potential customers. The text defines key terms like 'structure of population' and 'working-age population' (15-64 years), emphasizing how population trends shape societies and economies, aiding in resource allocation and management. This foundational knowledge is crucial for students to grasp societal transformations and economic development.
Quick info
| Board | CBSE / NCERT |
|---|---|
| Class | Class 8 |
| Subject | Social Science |
| Book | Exploring Society India and Beyond Part-II |
| Chapter | Chapter 6 — Dynamics of Population |
| Language | English |
| PDF type | NCERT Textbook |
| Session | CBSE 2026 |
| Reading time | 2 minutes |
| Word count | 400 |
Learning outcomes
- Define demography and its scope.
- Understand the concept of population structure and composition.
- Recognize the importance of demographic data for government planning and business strategies.
- Identify factors that cause population changes over time.
- Explain the significance of the working-age population.
Vocabulary
| Word | Meaning |
|---|---|
| Demography | The study of the composition of human population in terms of different factors like age, sex, occupation, and religion, and how they change over time. |
| Population ageing | A significant social transformation where the proportion of older individuals in a population increases. |
| Structure of population | How a population is made up based on different characteristics such as age, gender, education, etc. |
| Working-age population | Individuals between the ages of 15 and 64 years who are generally considered the most productive in terms of economic output and participating in the workforce. |
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Practice questions
- What is demography? Answer: Demography is the study of the composition of human population in terms of different factors like age, sex, occupation, and religion, and how they change over time.
- What does the structure of a population refer to? Answer: The structure of a population refers to how it is made up based on different characteristics such as age, gender, and education.
- Who are considered part of the working-age population? Answer: Individuals between the ages of 15 and 64 years are generally considered the working-age population.
- Why is understanding population dynamics important for governments? Answer: Governments use demographic information to plan infrastructure (schools, hospitals) and municipal services (water, energy) based on the population's needs.
Frequently asked questions
What is demography?
Demography is the scientific study of human populations, examining their size, structure, composition, and changes over time due to births, deaths, and migration.
What are the key components studied in demography?
Demography studies components like age, sex, education, occupation, religion, and how these characteristics change over time.
Why is understanding population structure important?
Understanding population structure helps governments plan essential services like schools and hospitals, and businesses tailor products to consumer needs.
Who is included in the working-age population?
The working-age population typically includes individuals between 15 and 64 years old, considered economically productive.
How does population change affect societies?
Population trends shape societies and economies by influencing the demand for resources, infrastructure, and employment opportunities.
What is population ageing?
Population ageing refers to the increasing proportion of older individuals in a population, a significant social transformation in the 21st century.
Related resources
Important topics
Topics covered
NCERT Class 8 Social Science — Exploring Society India and Beyond Part-II — Chapter 6 — Dynamics of Population. Verified by NCERT Help Editorial Team. Reviewed on 29 Jul 2026. Last updated 10 Aug 2026.