A gabion is a welded wire basket or cage filled with earth or rocks. It is typically used to build a support or abutment.From Wikipedia: Gabion (from Italian gabbione meaning big cage; from Italian gabbia and Latin cavea meaning cage) are cages, cylinders, or boxes filled with soil or sand that are used in civil engineering, road building, and military applications.rom Wikipedia: Gabion (from Italian gabbione meaning big cage; from Italian gabbia and Latin cavea meaning cage) are cages, cylinders, or boxes filled with soil or sand that are used in civil engineering, road building, and military applications.
Subject:Chemistry. Books in this subject area deal with chemistry: the science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reactions.
1 Physical organic chemistry â the study of the interrelationships between structure and reactivity in organic molecules.  Stereochemistry â the study of the spatial arrangements of atoms in molecules and their effects on the chemical and physical properties of substances.