I. population1. population boom-Population CA increased. 2005:6477 million.-The population explosion in the world today primarily in developing countries (80% of the population, 95% of the annual growth of the population in the world).-Rate of natural population growth over the period of rapid reduction in Group countries triểnvà slow reduction in groups of developing countries.-Member of the disparity in population growth rate between 2 groups of larger countries.-Population developing advisory groups continued to increase rapidly, the Group of developed countries tend to stagnated.-The population increased rapidly pressed heavily against environmental resources, economic development and quality of lifeCongested roads often because too many motorcycles is always pressing the unspeakable circulation of people longCongested roads often because too many motorcycles is always pressing the unspeakable circulation of people long2. chemical and old populationThe world population growing oldera. expression-The ratio on the increasingly lower age 15, the rate on the increasing age 65, life expectancy is rising.-Groups of developed countries have population structures.-The Group of developing countries has a young population structure.
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