You are given buttons of different colours. On what basis will you group them?
Based on colour.
Based on number of holes.
Based on shape.
Based on size.
In question, it is given that buttons are of different colours. No other property is given, so grouping will be on basis of colour.
You are given some objects with various shapes, colours, which are made of different materials. Can you classify or group them based on more than one criteria?
You are given some objects with various shapes and colours which are made of different materials. It is possible to arrange them in different orders based on different criteria.
____ is a method of separation of substances based on their sizee, colour, shape and texture.