(i) The way in which the people are spread across the world's surface is called pattern of population distribution.
(ii) Population is very unevenly distributed as 90% of the world's population lives on just 10%of the land surface. Many more people live in the northern hemisphere than in the southern hemisphere, and very few people live in high altitude areas, tropical deserts, high mountains and areas of equatorial forests.The most crowded areas are south and south east Asia,Europe and north eastern North America. Almost 3/4th of the world's population lives in the Asian and African continent. Thus, we see that the population distribution is highly uneven.

Social factors: Areas with better housing, education and health facilities are more populated than others.
Cultural factors: Places with cultural and religious importance attract more people than others.
Economic factors: Industrial areas are more populated as they provide employment opportunities.

The pyramid of Japan is narrow at the base whic means low birth rate. Decreased death rates all less number of people to reach old age.
The working population is more compared to the children and old population.

The population pyramid of Kenya is broad at the base and narrow towards the top because:
(i) many children are born
(ii) a large percentage of them die in their infancy
(iii) relatively few become adults and there arev few old people

Death rate is an influencing factor of population change. Deaths are usually measured using the death rate i.e. the number deaths per 1000 people. When death rate is more than birth rate, it is a population decrease

Birth rate is one of the influencing factors of population change. Births are usually measured using the birth rate i.e. the number of live births per 1000 people. When birth rate is more than death rate, it is a population increase

Each human is a potential resource for society. Healthy, educated and motivated people develop resources as per their requirements.
In the process, they make several discoveries, inventions and make contributions in several other aspects, leading to the development of their countries and its people.

People of different age groups have different requirements. If a society has too many under 15s, it will require more teachers, toys, schools as per the needs of children. Labour supply will be less. If a society has too few under 15s, it implies that it has more adult population which will require more pension schemes, hospitals, wheel chairs, labour supply will be more.

The population pyramids are the graphical method to show:
(a) total population into male and femalei.es composition.
(b) age group from 0-14, 15-59,59 years and above.
(c) work force.
(d) dependent and productive population.
The shape of the population pyramid helps to know about the people living in that
particular country. The numbers of children below 15 years age-group are shown at the bottom and reflect the level of births.
The size of the top shows the numbers of people above the age-group of 60 years and reflects the number of deaths.
The population pyramid also shows that ho many dependents and working force/class there in a country.

Population change means the structure of population that gives a fair idea about age, literacy level, income level, health condition and occupations of the people.

The main factors influencing population chan are:
(a) The difference between the birth rate and death rate which is called natural growth is the main cause of population change.
(b) Migration is also one of the main factors brings about population change. Migratio refers to the movement of people in and of an area or country.

The world population has grown very rapidly because of many factors:
(i) Rapid increase in Natural Growth Rate.
(ii) Eradication of many deadly dangerous diseases.
(iii) Migration of the people from developing countries to developed nations

Geographicalfactors:
(i) Relief features like plains, plateaus, desert, etc.
(ii) Climate like extreme or moderate climate.
(iii) Fertile soil with more agriculture.
(iv) Minerals attracting industry and people.
Social and economic factors:
(i) Social facilities like housing, health and education.
(ii) Economic facilities like employment generating industry.

People are considered a resource of a nation. Nature's bounty are also exploited by the people only. Healthy, educated and motivated people develop resources as per their demand.