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NCERT Class 12 Geography (Practical Work in Geography) Chapter 1: Data – Its Source and Compilation PDF Explained

In the Practical Work in Geography textbook for Class 12, Chapter 1 is titled “Data – Its Source and Compilation”. This chapter introduces students to the basic concept of data in geography, how it is collected, and how it is organised for analysis. It explains the difference between primary and secondary data, and how surveys,

NCERT Class 12 Geography (Practical Work in Geography) Chapter 1: Data – Its Source and Compilation

In the Practical Work in Geography textbook for Class 12, Chapter 1 is titled “Data – Its Source and Compilation”. This chapter introduces students to the basic concept of data in geography, how it is collected, and how it is organised for analysis. It explains the difference between primary and secondary data, and how surveys, censuses, reports, and online sources play a role in building geographic knowledge. This chapter forms the foundation for practical work like data analysis, mapping, and presentation. Without understanding how data is collected and compiled, students won’t be able to move forward with meaningful interpretation.

I’m writing about this chapter because it’s often overlooked. Students think practical books are easy, but many struggle when it comes to real exam questions or project work. Knowing about sources of data and how to compile it properly is not just for CBSE exams—this knowledge is helpful in real-life studies, surveys, and even research work. Whether you are preparing field reports, doing a school project, or learning how government agencies like Census of India or IMD collect data, this chapter is key. That’s why I’m breaking it down here in simple terms, and also giving the official NCERT PDF link at the end of this post.

What is Data in Geography?

Data in geography refers to any type of information that helps us understand geographical facts or patterns. It can be numbers, facts, figures, or observations that tell us about population, land use, climate, crops, pollution levels, etc. In simple words, data is the base of all geographical analysis.

There are two main types of data:

  • Primary Data – Collected directly by the person or organisation through fieldwork, surveys, interviews, questionnaires, etc.
  • Secondary Data – Already collected by someone else and available in published form, like reports, newspapers, websites, books, and government databases.

Understanding the source of data is very important. If you know where the data comes from, you can judge its reliability, accuracy, and usefulness.

Sources of Data

1. Primary Sources

These are original and collected directly from the field.

  • Observation (like noting cloud cover, temperature)
  • Interviewing people
  • Using questionnaires
  • Field surveys
  • GPS-based data collection

For example, if you visit a village and collect rainfall data from farmers, that is primary data.

2. Secondary Sources

These are second-hand and already available in written or digital form.

  • Census of India
  • Statistical Abstracts
  • Reports from Planning Commission or NITI Aayog
  • Weather reports by IMD
  • Satellite images
  • Books and journals

A common example of secondary data is downloading population statistics from the Census website.

Download PDF: NCERT Class 12 Practical Geography Chapter 1

NCERT Class 12 Geography (Practical Work in Geography) Chapter 1: Data – Its Source and Compilation

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NCERT Class 12 Sociology Part 2 Chapter 8: Social Movements PDF Download

Social movements have always been a powerful force for change in society, and NCERT Class 12 Sociology Part 2 Chapter 8 focuses on understanding their forms, causes, and impact. The chapter explains how movements arise, the role of leadership, and how they influence both policies and public opinion. It also discusses the differences between social

NCERT Class 12 Sociology Part 2 Chapter 8: Social Movements

Social movements have always been a powerful force for change in society, and NCERT Class 12 Sociology Part 2 Chapter 8 focuses on understanding their forms, causes, and impact. The chapter explains how movements arise, the role of leadership, and how they influence both policies and public opinion. It also discusses the differences between social movements and other collective actions like protests or campaigns.

I am writing about this topic because students often find it difficult to connect textbook theory with real-life events. This chapter is important as it gives clarity on why social movements occur, how they are sustained, and how they shape society in the long run. Understanding this is not only essential for exam preparation but also for developing awareness as responsible citizens. For instance, movements like the Chipko Movement, Civil Rights Movement, or farmers’ protests are rooted in the same principles discussed in this chapter. By studying this topic, students can relate classroom learning to the real world and also develop critical thinking on social change.

Overview of Social Movements in Sociology

In sociology, social movements are defined as organised efforts by a large group of people to bring about or resist change in society. The chapter categorises movements into different types:

  • Reformist movements – Aim to change specific laws or policies without altering the entire system.
  • Revolutionary movements – Seek to completely change the political, social, or economic order.
  • Reactionary movements – Work towards resisting or reversing changes in society.
  • Redemptive movements – Focus on changing individuals’ lives rather than structural changes.

The NCERT text also explains that social movements have four main stages – emergence, coalescence, bureaucratisation, and decline. Examples like the Dalit movement, women’s rights movements, and environmental movements help students understand these concepts better.

Key Features Discussed in the Chapter

  • Movements can be short-term or long-term depending on their goals and public support.
  • Leadership and organisation play a big role in sustaining the movement.
  • Media often acts as a catalyst by spreading awareness and gathering public opinion.
  • Social movements are different from riots or spontaneous protests because they have a clear objective and planned strategies.

Why This Chapter is Relevant for Students

Understanding social movements helps students not only in sociology but also in subjects like political science, history, and current affairs. It strengthens analytical skills and helps in competitive exams like UPSC, where social change is a key theme.

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Students who want to read the full chapter can download the official NCERT Class 12 Sociology Part 2 Chapter 8: Social Movements PDF from this website:

NCERT Class 12 Sociology Part 2 Chapter 8: Social Movements

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