Concept:High population concentration is best managed by creating awareness and controlling birth rates through structured social measures.
Explanation:The main issue is that too many people live in limited areas, causing pressure on housing, food, water, and jobs.
Sex education helps people understand the effects of rapid population growth.
It teaches responsible behaviour and the importance of smaller families.
Family planning provides access to modern contraceptives and health services.
This allows couples to choose the number and spacing of their children.
Both methods directly reduce birth rates and slow down population increase.
Governments and non-governmental organisations use these to prevent overcrowding in cities.
These approaches also improve maternal and child health.
Thus, combining education with family planning is a practical and sustainable solution.
Answer:The two ways that can be used to solve the world's high population concentration problems are sex education and family planning.