Class 8 questions answers of chapter human resource
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Question.1. Answer the following questions.
(i) Why are people considered a resource?
(it) What are the causes for the uneven distribution of population in the world?
(Hi) The world population has grown very rapidly. Why?
(iv) Discuss the role of any two factors influencing population change.
(v) What is meant by population composition?
(vi) What are population pyramids ? How do they help in understanding about the population of a country?
Answer.(i) Human beings are the most important resource of a nation. They are significant because had they not utilised their brains, the other resources of nature would not have found any utility. In other words, human resource is the ultimate resource.
(ii) Population density depends on the climate conditions and topography of the place, like few people live in high latitude areas, tropical deserts, mountainous ‘terrains, and forest areas,whereas a large number of people reside in plains. Fertility of soils, availability of fresh water, minerals are other major geographical factors behind this. Some social factors that boost the density of population in a region are better housing, education and health facilities. Places with cultural or historical significance are usually populated. Employment opportunities are another attraction for large chunks of population.
(iii) The world population has grown veiy rapidly because of the development in medical science which has caused decrease in death rate. Since lesser people die now of diseases than before, whereas there was no way to decrease the birth rate, the population has increased at a fast rate.
(iv) Geographical factors: People prefer to live on plains more than mountains or plateaus and they live more in moderate climates than extreme hot or cold. From the agriculture point of view, fertile lands are preferred. Areas with mineral deposits are more populated.
Economic factors: People prefer to industrial areas since they provide more and better employment opportunities. Due to this, industrial cities are thickly populated.
(v) The structure of the population with various respects like age, sex, literacy, occupations, health facilities, economic condition, etc is called population composition.
(vi) A population pyramid is a pictorial way to describe the population composition. The shape of population pyramid of a country is indicative of a lot of information about the country. The size towards the bottom may be used to estimate the birth rate, while the size towards the top to estimate the death rate.
(vii) A population pyramid in which the base is broad and the top part is narrow means that although a large amount of births take place, not all grow up to be adults and old; it means many die before reaching these ages. This indicates a large death rate and 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.
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(i) Why are people considered a resource?
(it) What are the causes for the uneven distribution of population in the world?
(Hi) The world population has grown very rapidly. Why?
(iv) Discuss the role of any two factors influencing population change.
(v) What is meant by population composition?
(vi) What are population pyramids ? How do they help in understanding about the population of a country?
Answer.(i) Human beings are the most important resource of a nation. They are significant because had they not utilised their brains, the other resources of nature would not have found any utility. In other words, human resource is the ultimate resource.
(ii) Population density depends on the climate conditions and topography of the place, like few people live in high latitude areas, tropical deserts, mountainous ‘terrains, and forest areas,whereas a large number of people reside in plains. Fertility of soils, availability of fresh water, minerals are other major geographical factors behind this. Some social factors that boost the density of population in a region are better housing, education and health facilities. Places with cultural or historical significance are usually populated. Employment opportunities are another attraction for large chunks of population.
(iii) The world population has grown veiy rapidly because of the development in medical science which has caused decrease in death rate. Since lesser people die now of diseases than before, whereas there was no way to decrease the birth rate, the population has increased at a fast rate.
(iv) Geographical factors: People prefer to live on plains more than mountains or plateaus and they live more in moderate climates than extreme hot or cold. From the agriculture point of view, fertile lands are preferred. Areas with mineral deposits are more populated.
Economic factors: People prefer to industrial areas since they provide more and better employment opportunities. Due to this, industrial cities are thickly populated.
(v) The structure of the population with various respects like age, sex, literacy, occupations, health facilities, economic condition, etc is called population composition.
(vi) A population pyramid is a pictorial way to describe the population composition. The shape of population pyramid of a country is indicative of a lot of information about the country. The size towards the bottom may be used to estimate the birth rate, while the size towards the top to estimate the death rate.
(vii) A population pyramid in which the base is broad and the top part is narrow means that although a large amount of births take place, not all grow up to be adults and old; it means many die before reaching these ages. This indicates a large death rate and 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.
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