Cubic kilometer (km³)
Definition: Cubic kilometer (symbol: km³) na volume of cube wey side na one kilometer. Na very big unit wey equal one trillion liters.
History/origin: Cubic kilometer come useful for geography, hydrology, and earth science because lakes, glaciers, and atmosphere volumes big pass smaller units.
Current use: Cubic kilometers dey used for reservoirs, oceans, ice sheets, volcanic material, and other very large natural volumes.
