Human Resources, Class – 8, Subject – Social science (Geography ),solved exercises.

1. Answer the following questions

(i) Why are people considered a resource?

Answer:
People are considered a resource because they use their knowledge, skills and abilities to create goods and services and help in the development of a country.

(ii) What are the causes for the uneven distribution of population in the world?

Answer:
Uneven distribution of population is due to differences in climate, landforms, soil fertility, availability of water, minerals, industries, transport facilities and job opportunities.

(iii) The world population has grown very rapidly. Why?

Answer:
The world population has grown rapidly due to better medical facilities, improved sanitation, increased food production and a decline in death rate.

(iv) Discuss the role of any two factors influencing population change.

Answer:

Birth rate: High birth rate increases population.

Death rate: Low death rate due to better healthcare increases population.


(v) What is meant by population composition?

Answer:
Population composition refers to the structure of the population based on age, sex, literacy level, occupation and health.

(vi) What are population pyramids? How do they help in understanding the population of a country?

Answer:
Population pyramids are graphical representations showing the age and sex composition of a population.
They help us understand the size of working population, dependent population and future population growth.


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2. Tick (✔) the correct answer

(i) Which does the term population distribution refer to?
✔ (c) The way in which people are spread across a given area.

(ii) Which are three main factors that cause population change?
✔ (b) Births, deaths and migration.

(iii) In 1999, the world population reached
✔ (c) 6 billion.

(iv) What is a population pyramid?
✔ (a) A graphical presentation of the age, sex composition of a population.


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3. Complete the sentences

Words given: sparsely, favourable, fallow, artificial, fertile, natural, extreme, densely

1. When people are attracted to an area it becomes densely populated.


2. Factors that influence this include favourable climate; good supplies of natural resources and fertile land.

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