Why sorting of material is important for us name any two basic on which material are grouped​

Explanation:

In order to classify the material as per its usage, Sorting Material into groups is necessary. ... For nondegradable substances, the objects should be sorted into recyclable and nonrecyclable substances, so as to reduce wastage of material.hope it helps you.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.