9th Social Science - Book Back Answers - Geography Unit 6

9th - Social Science - Book Back Answers - Geography Unit 6 - English Medium

Tamil Nadu Board 9th Standard Social Science - Geography Unit 6: Book Back Answers and Solutions

This post covers the book back answers and solutions for Unit 6 – Geography from the Tamil Nadu State Board 9th Standard Social Science textbook. These detailed answers have been carefully prepared by our expert teachers at KalviTips.com.

We have explained each answer in a simple, easy-to-understand format, highlighting important points step by step under the relevant subtopics. Students are advised to read and memorize these subtopics thoroughly. Once you understand the main concepts, you’ll be able to connect other related points with real-life examples and confidently present them in your tests and exams.

By going through this material, you’ll gain a strong understanding of Geography Unit 6 along with the corresponding book back questions and answers (PDF format).

Question Types Covered:

1 Mark Questions: Choose the correct answer, Fill in the blanks, Identify the correct statement, Match the following
2 Mark Questions: Answer briefly
3, 4, and 5 Mark Questions: Answer in detail

All answers are presented in a clear and student-friendly manner, focusing on key points to help you score full marks.

All the best, Class 9 students! Prepare well and aim for top scores. Thank you!

Topic: Unit 6. MAN AND ENVIRONMENT

I. Social | Choose the correct Answer

9th Social

II. Social | Fill in the blanks

9th Social

III. Social | Find out the correct statement

9th Social

IV. Social | Match the following

9th Social

V. Social | Differentiate Between

Distinguish between:

1. PRIMARY ACTIVITIES

SECONDARY ACTIVITIES

* Primary activities pertain to the extraction of raw materials from the earth's surface.

* Ex., Food gathering, hunting, fishing etc.,

* Secondary activities transform raw materials into finished materials.

* Ex., Iron and Steel Industries, automobile, manufacturing.

VI. Social | Answer the following briefly

1. What do you mean the term "Density of population"?

The number people living per square kilo meter is called density of population. Density of population Total population / Total area.

2. What is 'Black death'?

When the disease breaks out and affects large number of people in a particular geographical region and spreads at the same time it is called Black death.
Ex., Outbreak of plague in 14th century in Europe.

3. Define.

Population growth.

It refers to an increase in the number of people who reside in a particular area during a particular period.

Census:

Census is an official enumeration of population carried out periodically.

Sustainable Development:

Sustainable Development is the development that meets the needs of the present without compromising the ability of future generation to meet their own needs.

VII. Social | Answer all the questions given under each caption

1. Explain the factors affecting the distribution of population.

Factors affecting the distribution of population:

Physical factors:

Physical factors include temperature, rainfall, soil, relief, water, natural vegetation, distribution of minerals, and availability of energy sources.

Historical factors:

Regions with historical importance, war and constant invasions fall under historical factors responsible for population distribution.

Economic factors:

Educational institutions, employment opportunities, manufacturing industries, trade and commerce and other facilities encourage dense population in an area.

2. Describe the patterns of rural settlement with near diagrams.

Rectangular pattern:

Rectangular pattern of settlements are found in plain areas of valleys.
The roads are rectangular and cut each other at right angle.

Linear pattern:

The houses are located along a road, railway line and along the edge of the river valley or along a levee.

circular semicircular pattern:

This is found around the lake, ponds and sea coasts are called circular or semicircular patterns.

Star like pattern

Where several metalled or unmetalled roads converge star shaped settlements develop.
Houses are spread out along the sides of roads in all directions.

Triangular pattern:

Triangular patterns of rural settlement generally develop at the confluence of rivers.
T-Shaped, Y-Shaped, Cross - Shaped or Cruciform Settlements:
T-Shaped settlements develop at tri- junctions of the roads.
Y-Shaped settlements emerge as the places where two roads converge with the third one.
Cruciform settlements develop on the crossroads which extend in all four directions.