It's Out Of C Or D Because It Explains It
They all have different compositions of protons, neutrons, and electrons. This causes variety and makes atoms different so they can make up different substances
I believe the answer is D) reactivity. Hope this helps. (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧
Physical is something you can have/ hold and mental is something in ur head that you can't see or hold.
Answer:
Pugs appear to be ugly due to them being bred deformed by design, harboring a condition called brachycephaly.
Explanation:
