Answer:
The statement that describes something different from the change of matter is peroxide breaking down into water and oxygen.
Step-by-step explanation:
Hydrogen peroxide (H₂O₂) is found in nature in liquid form and undergoes a decomposition reaction, obtaining water and releasing oxygen and heat.
In any case, in the decomposition reaction of peroxide there is no change in the state of matter, since it is a chemical reaction that can be spontaneous, by contact with organic matter or through the use of catalysts.
The other options are associated with changes in matter:
B and C. Bubbles forming when a pot of water is heated and a pair of jeans soaked in water drying after hanging outside. These are examples of water evaporation, which changes from liquid to water vapor.
D. A block of ice decreasing in size due to a change in temperature. Defrosting or melting of water, which goes from solid to liquid.