Which of the following is not true regarding run of river hydroelectricity production vs, dam hydroelectricity production? a. Run of river has less of an environmental footprint. b. Run of river is usually higher power production. c. Run of river uses less building material like concrete. d. Run of river does no depend on large water reservoirs. Mix and match! The term for the organic matter used in biomass fuel generation. An analogue of natural gas for biomass. Pyrolysis uses an oxygen free environment to create this as a biproduct