I'm pretty sure all 4 are subatomic particles but if i had to guess i'd be Photons
It is too early for students to have career preferences while still in school
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Answer: I did the research myself since I couldn’t find the answers.
Physical change:
Wax melting from applied heat
Grinding wheat to make flour
Adding copper with gold to make jewelry
Chemical Reaction:
Growth of a seed into a seedling
Making caramel by burning sugar
Tarnishing of silver
Explanation:
Thanks google