Population { Population growth & distribution }

Population growth: the increase in the number of people in a particular area
Trend of World Population Growth: the changes in the growth in world population over a specified period
Population Explosion: Rapid increase in population, a sudden increase

The number of people living in a certain area would always change in amount. However, there are different types of changes, mainly, there are 2 types of changes:
-- Positive change
-- Negative change

If there were no change, we call it 'Zero Population Growth'.


How is the world population distributed?
-- Population distribution : how the population is distributed or spread out over an area
----- Distribution of the world population is uneven, some are densely populated (Overcrowded), some are sparsely populated ( Few People )

-- Population density: the number of people in one unit area of land ( E.g. km2)
----- Calculated like this:



Basically, just take the number of people divided by the area (in km2)

-- Places can be classified into three groups according to their population density:
----- Densely populated (High population density - over 200 persons per km2)
----- Moderately populated (Modreate population density - 10 to 200 persons per km2)
----- Sparsely populated (Low population density - under 10 persons per km2)

Opps, gtg, will continue later.
Thankyou.

{ C.weishi --

Labels: Geography