Milliliter (mL)
Definition: Milliliter (symbol: mL) na one thousandth of one liter. E dey exactly equal to one cubic centimeter.
History/origin: Milliliter come from metric system and e make sense because e match cubic centimeter wey dem dey use for science and medicine.
Current use: Dem dey use milliliters for medicine doses, food labels, cooking liquids, perfumes, and small drink portions.
Cubic kilometer (km³)
Definition: Cubic kilometer na huge metric volume unit. One 1 km × 1 km × 1 km cube get 1,000,000,000 m³, or 1,000,000,000,000 L.
History/origin: Earth science need readable unit for very big natural volumes, so km³ help for water bodies, ice, rock, magma, and atmosphere-scale quantities.
Current use: km³ dey show for hydrology, climate reports, ocean volume estimates, glacier studies, volcanic eruption data, reservoir capacity, and large-scale geography.