Individuals drank heavy water, which becomes incorporated into
numerous synthetic processes making it possible for measurement of the rates at which different muscle components are being generated.
Coal is an abundant natural resource that can be used as a source of energy, as a chemical feedstock from which
numerous synthetic compounds (e.g., dyes, oils, waxes, pharmaceuticals, and pesticides) can be derived, and in the production of coke for metallurgical
processes.