Respuesta :
Answer:
a. chemical change
Explanation:
A chemical change can cause an odor, however a physical change cannot, and the use of thermal energy will only make an object colder, not give it an odor.
I'm pretty sure that the answer is a chemical change
a physical change is only something you can see and in the chemical change it is possible to smell it.
your welcome :)
a physical change is only something you can see and in the chemical change it is possible to smell it.
your welcome :)