Breaking a chair into pieces is an example of a substance changing its state of matter ,therefore option (c) is correct.
There are three state of matter which includes solid, liquid and gases.
A solid is, in most cases, rigid and holds a definite shape. Solids do not change shape at room temperature. They retain the same shape.
A liquid typically flows and, when inside a contained, takes its shape, although the upper surface remains flat or slightly curved.
Gases do not have any definite shape nor have any specific volume. Gases fill the entire space available to them. They can be compressed under pressure.
Breaking a chair into pieces is an example of a substance changing its state of matter ,hence option (c) is correct.
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