An airport is an aerodrome with facilities for flights to take off and land. Airports often have facilities to store and maintain aircraft, and a control tower. An airport consists of a landing area, which comprises an aerially accessible open space including at least one operationally active surface such as a runway for a plane to take off or a helipad, and often includes adjacent utility buildings such as control towers, hangars and terminals. Larger airports may have fixed base operator services, airport aprons, air traffic control centres, passenger facilities such as restaurants and lounges, and emergency services. 

The majority of the world's airports are non-towered, with no air traffic control presence. Busy airports have air traffic control (ATC) system. All airports use a traffic pattern to assure smooth traffic flow between departing and arriving aircraft. There are a number of aids available to pilots, though not all airports are equipped with them. Many airports have lighting that help guide planes using the runways and taxiways at night or in rain, snow, or fog. In the U.S. and Canada, the vast majority of airports, large and small, will either have some form of automated airport weather station, a human observer or a combination of the two. Air safety is an important concern in the operation of an airport, and airports often have their own safety services.

Now, provide a numbered list of answers to these questions:

1. What is an airport?
2. with what?
3. Do most have towers?
4. what does that mean?
5. What is something they all use?
6. for what?
7. between what?
8. What are some of the facilities they have?
9. What do airports consist of?
10. anything else?
11. what?
12. what are landing areas for?
13. What do some of the larger airports have?
14. What can help guide planes?
15. during what type of weather?
16. How do the airports know the weather?
17. What is an important concern?
18. What do airports usually have there own of?
19. What is the abbreviation for air traffic control?
20. What are available to pilots?

Numbered answers:
1. an aerodrome
2. with facilities for flights to take off and land.
3. no
4. no air traffic control presence.
5. a traffic pattern
6. to assure smooth traffic flow
7. departing and arriving aircraft.
8. facilities to store and maintain aircraft, and a control tower.
9. a landing area
10. yes
11. utility buildings such as control towers, hangars and terminals.
12. comprises an aerially accessible open space including at least one operationally active surface such as a runway for a plane to take off or a helipad
13. passenger facilities such as restaurants and lounges, and emergency services
14. lighting
15. rain, snow, or fog.
16. an automated airport weather station, a human observer or a combination of the two.
17. Air safety
18. safety services.
19. ATC
20. aids