Which of the following factor is mainly responsible for the high density of population in the Kobe-Osaka region of Japan?

Industrialisation

The correct answer is Option (1) → Industrialisation

Industrialisation: Industrial belts provide job opportunities and attract large numbers of people. These include not just factory workers but also transport operators, shopkeepers, bank employees, doctors, teachers and other service providers. The Kobe-Osaka region of Japan is thickly populated because of the presence of a number of industries.