Yes.
Big bombs
Military aircraft( combat planes/fighter jets/combat jets/fighter aircraft/combat aircraft). Military planes are airplanes that can carry weapons.
Passenger planes are for transporting people and are usually quite large. Fighter planes are for air defence and generally carry only the pilot, plus possibly a weapons officer.Passenger planes are for transporting people and are usually quite large. Fighter planes are for air defence and generally carry only the pilot, plus possibly a weapons officer.
Yes. The United States Navy Blue Angels used to carry weapons but now they are used as sport planes and they are also F-18 super hornets too.
With the exception of certain jump jets, helicopters can land easier than planes and better maneuverability. Planes are much faster and can carry stronger air to air weapons or bombs, but helicopters have better air to ground precision weapons. Helicopters are better for ground force support. helicopter requires less space instead of planes.
No. All airplanes can't carry weapons but some airplanes can carry weapons. If it is a military aircraft so yes they can carry weapons but if it is a friendly aircraft so no they cannot carry weapons.
people carry weapons for protection
It depends on the EXACT aircraft. Bigger aircraft (bombers, transporters) would probably carry more weapons than smaller aircraft (scout planes, fighters). Re-ask the question with the missing information.
Cargo planes do not carry passengers. Some commercial planes make "ghost flights" with no passengers on board.
Yes, airplanes can carry weapons. That's quite true that some airplanes can really carry weapons.
Yes, CDs are allowed on planes as part of carry-on luggage.
No, razor blades are not allowed in carry-on luggage on planes.