Question

(a)Give any two reasons of classifying materials into different groups. 3

Answer 1

Answer:

We classify the objects because it gives us the following advantages: 1 The classification of objects into groups make it easier to locate them and work with them. 2 If we know the properties of any one member of the group, we can get an idea of the properties of the other members of this group.

Answer 2

Answer:

There is very big range of material in this world, we classify them in different groups because :-1)we can identify them easily. 2) we can study about them in few steps.