8th Geography


I. Fill in the blanks:

1. The rise in Population has been steadily rapid since _________.

2. The birth rate is the number of line births in a year for every ________ people of the total Population.

3. The world population reached 6 billion in the year_________.

4. ____________ and human factors affect the distribution of people across the world.

5. Population density is calculated dividing the number of people in a country by the _________ of the country.

6. The growth of population depends on the _______rate and ________rate.

7. When the birth rate is low and the death rate is how the population will_____________.

8. The difference between the birth rate and the death rate is termed as _____________.

9. Developing countries have ___________ death rates and _________ birth rates.

II. Choose the correct answer:

1. When birth rates are high and death rates are __________ the population of an area will increase.

a) High b) Low c) Stable

2. About 90% of the earth’s people line on ___________

a) 10 b) 20 c) 25

3. _____________ is considered the most densely populated country.

a) China b) Mexico c) Bangladesh

4. Areas with ____________ climates tend to be sparsely populated

a) Favourable b) Extreme c) Cool

5. ________ with stable government has high population density

a) Afghanistan b) Egypt c) Singapore

III. Match the following

1. 1804  a) Low Population density
2. Monaco  b) Least density of Population
3. Low birth rate and  c) 1 billion Population high death rate
4. Australia  d) Population decline
5. Germany  e) High Population density

IV. Answer briefly

1. Define

a) Birth rate:

Birth rate is the number of line births in a year for every 1000 people in the total population.

b) Death rate:

Death rate is the number of deaths in a year for every 1000 people in the total population.

c) Population density:

Population density is defined as the number of people per sq.km. It is calculated by dividing the number of people of a country by the area of that country.

2. How does climate affect population distribution and density?

i) Areas with favourable climates tend to be densely populated as there is enough rain and heat to grow crops . Eg. India

ii) Areas with extreme climates are sparsely populated because the conditions are not suitable for living.

Eg. The hot Sahara desert and extremely cold areas like Greenland.

V. Detail

1. Give a detailed account of the world’s population growth?

i) World’s population has been growing rapidly since 1950.

ii) The improvements in medical care, health, flood control and fire protection etc., helped to control the natural loss.

Thus started low death and increase in births.

iii) The growth of population or the natural increase of population depends on the birth rate and death rate.

iv) When birth rates are higher than death rates, the population will increase.

v) When the birth rate is low and the death rate is high, the population will decline.

vi) Different countries are at different stages of population change.

vii) The developed countries of the world have low birth and death rates.

2. What are the different human factors that affect population density? Explain.

Political, Social and economic factors affect population density. Those are called human factors.

Political factors

i) Countries with stable governments tend to have a high population density. Example : Singapore

ii) Countries with unstable as people move away

Example : Afghanistan

Social factors

Groups of people prefer to time close to each other for security. Then there will be high density of population.

Example : USA

Some groups of people prefer to be isolated. Then these will be low density of population.

Example : Scandinavians

Economic factors

i) Good job opportunities cause high population densities, particularly in large cities in both the more economically developed.

Example : Tokyo