Photoorganoheterotroph = use light, organic e- donor, carbon source. Chemolithoautotroph = use organic/inorganic mlcls for energy, inorganic e- donor, CO2 carbon source. Chemolithoheterotroph = use organic/inorganic mlcls for energy, inorganic e- donor, organic carbon source. Chemoorganoheterotoph = organic/inorganic energy source, organic e- donor, carbon source.
When plastic polymer technology was not much in use Waxed Paper or card board paper was used to wrap soaps, cookies and a host of other fragile items. Wax makes the paper stiff, water resistant and moisture proof. Wax is environmentally benign and non toxic to humans. Even now as a green measure we see fruit juice packs on such cardboard papers.
Burning treated wood, such as, plywood releases heavy toxic chemicals like dioxin into the air. Plywood is made from MDF, which stands for medium-density fiberboard, it is not 100% wood but a wood byproduct, made of wood chips and particles combined with binders and other resins to harden it into sheets.