Answer: Cell Wall
Explanation: Both archaea and bacteria have a/n Cell Wall, but it is made of peptidoglycan in bacteria and pseudo peptidoglycan in archaea.
The Answer to question number two is the sun
To protect it from the acids
This one can be tricky, because your are changing the appearance of the substance. But here, you aren't changing its chemical form, so its a physical change. Even though you can't bring the pencil to its original beginning, its still a physical change.
Answer: Physical change.
Aromatic is a organic molecule that is a carbon
