Ehime Entrance Social Studies Practice Questions - Ehime Public High School Entrance Examination - Social Studies Exam

Summer rainfall is low and there are few large rivers, so water had to be stored to secure supplies for farming. They were needed as retention basins to prevent flood damage from heavy winter snow. They were needed to store high-temperature water for geothermal power generation. They were used as dams on fast-flowing rivers for hydroelectric power generation.