Meals provided on any flight will depend on the Airline, route and class of ticket.
Most low-cost, short-haul operators do not provide any meals.
Long-haul, premium flights normally include at least one meal.
Yes there is as well as a captain and first officer.
Airbus A330-300
The Airbus A300 is a 266 seat short/medium-range twin-engined aircraft that entered service in 1974. The Airbus A380 is a 853 seat long-range four engined aircraft that entered service in 2007.
Airbus do not make an A320-300.
Northwest Flight 253 was in Delta Equitment. It's an Airbus A330-300 Aircraft that still flys for Delta today. The flight regestration is N820NW
The A330-300 entered service in January 1994. They are still being made (mid-2013).
It is the model of the plane.
The Airbus A330-300 has an empty operating weight of 124,500 kg (274,500 lb).
The ICAO aircraft type designator code for an Airbus A330-300 is A333
Qantas Airlines currently has 31 Airbus airplanes. Airbus A380-800:12 Airbus A330-300:10 Airbus A330-200:9
Airbus A340-300 has 295 seats Airbus A340-500 has 313 seats Airbus A340-600 has 380 seats
Airbus 330-300 carries 440 passengers.