Question

Classify the following materials in three ways each (on the basis of their properties).
(b) Glass
(c) Paper
(d) Iron
(a) Wood ​

Answer 1

Answer:

(a) In general you can divide glass into two groups: natural glass and artificial glass. While artificial glass is produced by the melting of several raw materials, natural glass is produced by processes in nature.

(c) Iron is a brittle, hard substance, classified as a metal in Group 8 on the Periodic Table of the Elements. The most abundant of all metals, its pure form rapidly corrodes from exposure to moist air and high temperatures

(d) 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.

sorry I can't Answer the (b) number

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