[Solved] If the marginal benefit of reducing emissions of some air pollutant is less than the marginal cost, A)further reductions will make society better off. B)further reduction will make society worse off. C)pollution taxes should be imposed on producers to pay for further reductions. D)economic efficiency will be increased if further reductions are made. Culture Medium: A substance, often a gel or liquid, designed to support the growth, storage, or transport of microorganisms or cells. Colony: A distinct group of microorganisms, visible with the naked eye, on the surface of a culture medium. Mordant: A substance used in dyeing and printing that fixes the dye in the fabric, improving colorfastness; or, when used figuratively, it describes a sharply caustic or incisive expression. KOH Mount: A laboratory technique used to diagnose fungal infections, involving the application of potassium hydroxide to a sample to clear the material and make fungi more visible under a microscope.