It uses classical science to analyze the human form.
Answer:
BBL
Explanation:
1 BBL = 42 US Gallons = 34.9726 Imperial Gallon = 158.987 Litres.
The standard volume unit for crude oil measurement, the 42-gallon barrel ("bbl"), dates back to the 1860s, when Pennsylvania producers actually stored and transported petroleum in wooden barrels.
Population Pyramid Expansive - pyramid with a wide base (larger percentage of people in younger age groups, indicating high birth rates and high fertility rates) and narrow top (high death rate and lower life expectancies). It suggests a growing population.
