Dictionary / Vocabulary / 浄化
じょうか
purification; cleanup (e.g. of politics); purge
common word
湿地帯は生態系において水の浄化、洪水と侵食の防止、野生生物への食料とすみかの提供という重要な役割を演じる。
Wetland habitats serve essential functions in an ecosystem, including acting as water filters, providing flood and erosion control, and furnishing food and homes for fish and wildlife.