أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
No, if baggage loading is properly done.
Yes, but due to the dew. The cargo hold is always cool and if the plane lands in a humid place things might get a bit moist. Usually this happens to hardshell suitcases not sure about cardboard.