Which of the following is an example of a chemical change?

a. breaking a plate
b. boiling water
c. baking bread
d. cutting hair

It would be baking bread because all the others are only affecting appearence...anything that burns or bakes is chemical

This is what i found on google “phytoplankton, tiny organisms that live in the ocean, are autotrophs. some types of bacteria are autotrophs. most autotrophs use a process called photosynthesis to make their food.” i hope this you for what your looking for