Class 12 Geography - KERALA
The World Population Distribution Density and Growth
This chapter from the Class 12 Kerala SCERT Geography syllabus explores the patterns of human population across the globe. It examines the concepts of population distribution, density, and growth, highlighting the physical, economic, and social factors that influence where people live. Students will learn how to calculate population density, understand the components of population change such as birth rates, death rates, and migration, and analyze demographic transition theory. Understanding this chapter is crucial for board exams as it forms the foundational base for human geography and frequently features in analytical and map-based questions.
Start Learning FreeKey Concepts
Population Distribution
The way people are spaced over the earth's surface, which is highly uneven with densely populated river valleys and sparsely populated deserts and polar regions.
Population Density
The ratio between the number of people and the size of the land, usually measured in persons per square kilometre.
Demographic Transition Theory
A model that describes population growth over time as a country moves from a pre-industrial stage of high birth and death rates to an industrial stage of low birth and death rates.
Push and Pull Factors
Push factors encourage people to leave their place of origin (like unemployment or poverty), while pull factors attract them to a new location (like better job opportunities or climate).
Crude Birth Rate (CBR)
Expressed as the number of live births in a year per thousand of population.
Important Formulas
Board Exam Info
In the Kerala (SCERT) Class 12 Geography examination, this chapter typically carries around 6 to 8 marks. Questions usually include a mix of direct definitions, short-answer questions on factors affecting population distribution, and application-based or analytical questions regarding demographic transition stages and population growth formulas.
Frequently Asked Questions
What is the difference between population distribution and population density?
Population distribution refers to the pattern of where people live across the earth, whereas population density is a mathematical calculation of the number of people living per unit area of land.
How do push and pull factors affect migration?
Push factors are unfavorable conditions like drought, war, or unemployment that force people to migrate away, while pull factors are favorable conditions like better education, jobs, and healthcare that attract migrants to a new place.
What are the three main components of population change?
The three main components of population change are births, deaths, and migration.
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