POPULATION. DEFINITION OF POPULATION. Population is defined as the total number of people living within a country or a geographical area at a particular time.
Population, in other words, refers to the total number of children, adults (men and women), youth (boys and girls) living in a given geographical area, which may be a town, village or country, at a specific time.
PERFORMANCE OBJECTIVES
At the end of this chapter, students should be able to:
- Explain the meaning of population in Economics.
- Describe population size and its implications.
- Discuss various population theories in Economics.
- Explain the meaning of population distribution and its implications on the economy.
- Explain population census and state the importance and problems.
The study of population is very important for many reasons. Such reasons include the determination of the working population, allocation of resources, the availability of labour, etc. As at 1982,
the world population was put at 4.5 billion people. With the world average population growth rate at 1.8 percent, it is estimated that by the year 2000, the population of the world would have been 6.25 billion people.
population Size in terms of continents
Asia is the most populous continent in the world, followed by Europe, Africa, North America South America and lastly Australia Antarctica.
Size in terms of countries
China is the most populous country (1.3 bit followed by India (1.0 billion), United Sc (276,261 million), Indonesia (219,267 mil etc. In Africa, Nigeria is the most populous country with 117,328 million people.
These are population estimates for these countries by year 2000. today the population of the countries mentioned above has almost doubled.
ROUND WORM OF PIGS
161. LIVER FLUKE
162. ECTO PARASITES
163. TICK
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