Answer:
Hey I think the answer is The buffer colony
Explanation:
Hope it helps
The correct answer is B) the lack of availability or lack of use of contraceptives.
<em>The world’s population is concentrated in certain countries like China most likely because of the lack of availability or lack of use of contraceptives.
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There are many countries, most of the underdeveloped countries, that lack of a sexual education program in school. The government also does not have sexual education campaigns for families and many people do not use a contraceptive or condom to control natality. That is why certain countries have overpopulation in their territories. That is the case of China or India.