The metric prefixes mega, kilo, deci, centi, milli, micro are defined. Introduction to Chemistry - Metric Conversions: the metric prefixes mega, kilo, deci, centi, milli, micro are defined, and ...
Humans have created 8.3 billion metric tons of plastics since large-scale production of the synthetic materials began in the early 1950s, and most of it now resides in landfills or the natural ...