ADDITIONAL QUESTIONS:
1. What is population study known as .
Ans: The population study is known as demography.
2. Why population studies are essential for the government.
Ans: Population studies are essential for the government to plan areas such as health, education, housing, social security employment and environment.
3. Why is population growth slowing in UK .
Ans: Population growth slowing in UK because of both low birth and low death rates.
4. In what respect human beings differ.
Ans: Human beings differ from each other age, sex, education, culture, physical and mental health etc.
5. What are different characteristics of population composition.
Ans: Population is usually formulated for the following:
i) Population composition of age and sex .
ii) Population of primary school age children going to school.
iii) Population composition of primary school age children not going to school.
iv) Population composition of occupation.
6. What are human resources.
Ans: Human beings who are healthy, educated and mentally strong can prove to be useful for the country and are treated as resource themselves, called human resource
7. What are patterns of population distribution.
Ans: The way in which people are spread across the earth’s surface is known as the pattern of population distribution.
8. What is population density.
Ans: Population density is the number of people living in a unit area of the earth’s surface.
9. What is life expectancy.
Ans: Life expectancy is the number of years that an average person can expect to live calculated according to existing data for the particular regions.
10. What is the average density of population in India.
Ans: The average density of population in India is 324 people per sq. km
Fill in the blanks :
1. The most populated continent is _________.
2. The least number of people live in _________ continent.
3. According to the population _________ is India’s rank in the world.
4. __________ is considered to be the ultimate resource.
5. Birth rate and death rate are usually expressed in terms of per ________ people.
6. The age group 0-15 comes under the economically __________ group.
7. The world population reached a billion in the year _______.
Ans:
1. Asia 2. Antarctica 3. 2nd 4. Human resource
5. 1000 6. Dependent 7. 1820 .
Answer the following:
1. Define population change. How do the following factors affect the distribution of population?
(i) Topography
(ii) Climate
(iii) Soil
(iv) Water
(v) Minerals.
Ans: The population change refers to change in the number of people during a specific time. The world population has not been stable.
This is how the following factors affect the distribution of population.
- Topography: People always prefer to live on plains rather than mountains and plateaus because these areas are suitable for farming, manufacturing and service activities.
- Climate: People usually avoid extreme climates that are very hot or very cold.
- Soil: Fertile soils provide suitable land for agriculture. Fertile plains are densely populated around different parts of the world.
- Water: People prefer to live in the areas where freshwater is easily available. The river valleys of the world are densely populated while deserts have spare population.
- Minerals: Areas with mineral deposits are more populated.
2. What do you know about Human Resource Development (HRD) ministry under the government of India?
Ans: The Government of India has a ministry of Human Resource Development. The Ministry was created in 1985 with an aim to develop people’s skills. This just shows how important people are as a resource for the country.
3. What is meant by the term population density and what is the average density of population in whole world and in India?
Ans: Population density is the number of people living in a unit area of the earth’s surface. It is normally expressed as per sq km. The average density of population in the whole world is 51 persons per sq km. and the average density of population in India is 382 persons sq km. South Central Asia has the highest density of population.
4. What is the meaning of population Density?
Ans: Population density is the number of people living in a unit area of the earth’s surface.
5. Which is the ultimate resource?
Ans: Human Resource.
6. What do you mean by the pattern of population distribution? How is world population distributed?
Ans: The way in which people are spread across the earth’s surface is known as the pattern of population distribution. More than 90% of the world’s population lives in about 30 per cent of the land’s surface. The distribution of world population is extremely uneven.