✨ ベストアンサー ✨
違ってたらすみません。
(4) Which is more beautiful , Tokyo Skytree or Tokyo Tower?
I think Tokyo Tower is.
(5) what river is the most longest in Japan?
It's the Shinano river.
(6) what is the most famous mountain in Japan?
I think Mt, Fuji .
ありがとうございます！！！！！m(_ _)m