t.
Agriculture--products: This entry is a rank ordering of major crops
and products starting with the most important.
Airports: This entry gives the total number of airports. The runway(s)
may be paved (concrete or asphalt surfaces) or unpaved (grass, dirt,
sand, or gravel surfaces), but must be usable. Not all airports have
facilities for refueling, maintenance, or air traffic control.
Airports--with paved runways: This entry gives the total number of
airports with paved runways (concrete or asphalt surfaces). For
airports with more than one runway, only the longest runway is
included according to the following five groups--(1) over 3,047 m, (2)
2,438 to 3,047 m, (3) 1,524 to 2,437 m, (4) 914 to 1,523 m, and (5)
under 914 m. Not all airports have facilities for refueling,
maintenance, or air traffic control. Only airports with usable runways
are included in this listing.
Airports--with unpaved runways: This entry gives the total number of
airports with unpaved runways (grass, dirt, sand, or gravel surfaces).
For airports with more than one runway, only the longest runway is
included according to the following five groups--(1) over 3,047 m, (2)
2,438 to 3,047 m, (3) 1,524 to 2,437 m, (4) 914 to 1,523 m, and (5)
under 914 m. Not all airports have facilities for refueling,
maintenance, or air traffic control. Only airports with usable runways
are included in this listing.
Appendixes: This section includes Factbook-related material by topic.
Area: This entry includes three subfields. Total area is the sum of
all land and water areas delimited by international boundaries and/or
coastlines. Land area is the aggregate of all surfaces delimited by
international boundaries and/or coastlines, excluding inland water
bodies (lakes, reservoirs, rivers). Water area is the sum of all water
surfaces delimited by international boundaries and/or coastlines,
including inland water bodies (lakes, reservoirs, rivers).
Area--comparative: This entry provides an area comparison based on
total area equivalents. Most entities are compared with the entire US
or one of the 50 states based on area measurements (1990 revised)
provided by the US Bureau of the Census. The smaller entities are
compared with Washington, DC (178 sq km, 69 sq mi) or The Mall in
Washington, DC (0.59 sq km, 0.23 sq mi, 146 acres).
Birth rate: This entry gives the average annual number of births
during a year per 1,000 population at midyear; also known as cru
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