is there any difference between wood and coal in term of physical state?
Answers
Answer:
coal is (uncountable) a black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel while wood is (uncountable) the substance making up the central part of the trunk and branches of a tree used as a material for construction, to manufacture various items, etc or as fuel or wood can be a peckerwood.
Answer:
1. Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen, on other hand the main physical properties of wood include: color, luster, texture, macro-structure, odor, moisture, shrinkage, internal stresses, swelling, cracking, warping, density, sound - electro - thermal conductivity. Сolor, shine, texture and macrostructure determine the appearance of wood.