6.2 Text Questions :
I. Answer the following questions :
1. Why are people considered a resource.
Ans: Human beings are the most important resource of a nation. They are significant because if they had not utilized their brains, and the other resources of nature would not have found an utility. In other words human resource is a ultimate resource.
2. What are the causes for the uneven distribution of population in the world.
Ans: Population density depends on the climatic condition and topography of the place, like few people live in high latitude areas, tropical deserts, mountainous terrain and forest areas, whereas few prefer to live in plains. Fertility of soil, availability of fresh water, minerals are other major geographical factors. Some social factors that increase the density of population in an area are better housing, education, health facilities. Even places of cultural and historical importance are also mostly populated. Employment is another attraction for a large amount of people.
3. The world population is grown very rapidly. Why.
Ans: The world population has grown rapidly because of the development in medical science which has caused decrease in the death rate. Lesser people die now as compared to before. And the birth rate has also increased a lot.
4. Discuss any two factors influencing population change.( Choose any two)
i) Topography: People always prefer to live on plains rather than in mountains and plateaus.
ii) Climate: People prefer to live in moderate climate rather than extreme hot or cold.
iii) Soil: Fertile soil provide fertile land for agriculture. So fertile areas are highly populated.
iv) Minerals: Areas with minerals deposits are more populated. Even discovery of oil has made those areas densely populated .
v) Water : People prefer to live in areas where fresh water is easily available. The areas of river valleys are more densely populated.
5. What do you meant population composition.
Ans: The structure of the population with various aspects like age, sex, literacy, occupation, health facilities, economic conditions etc. is called population composition.
6. What are population pyramid. How do they help in understanding about the population of a country.
Ans: A population pyramid is a pictorial way to describe the population composition. The shape of the population pyramid of a country indicates of lot of information about the country. The size towards the bottom may be used to estimate the birth rate, and the size at the top to estimate the death rate.
-A population pyramid in one in which the base is broad and the top part is narrow. That means although a large amount of births take place, not all grow up to be adults and old, it means many die before reaching old age. This indicates a large death rate. Kenya shows such a pyramid. This means a high population growth rate.
-In countries like India, the death rate is decreasing, so the pyramid is broad in the younger age groups. And the size of the pyramid decreases steadily.
II. Tick the correct answers :
1. Which does the population distribution refer to.
a) How population in a specified area changes over time.
b) The number of people who die in relation to the number of people born in a specified area.
c) The way in which people are spread across a given area. √
2. Which are the three main factors that cause population change.
a) Births, deaths and marriages b) Birth, death and migration √ c) Birth, death and life expectancy.
3. In 1999, the world population reached :
a) 1 billion b) 3 billion c) 6 billion √
4. What is population pyramid.
a) A graphical presentation of the age, sex composition of a population.√
b) When the population density of an area is so high that people live in tall buildings.
c) Pattern of population distribution in large urban areas.
III. Complete the sentences below using some of the following words:
(Sparsely, Favourable , Fallow, Artificial, fertile, natural, extreme, densely)
When people are attached to an area it becomes ____________ populated. Factors that influence that influence this include _________ climate, good supplies of ___________ resources and__________ land.
When people are attached to an area it becomes densely populated. Factors that influence that influence this include favourable climate, good supplies of natural resources and fertile land.