o Services can be commercial, or related to transport, leisure and
tourism, information, administrative, financial, cultural, social services,
personal services, etc.
� According to their degree of specialisation:
o Highly-skilled services, or the quaternary sector, which requires an
advanced level of professional training for areas. They are important in
developed countries. (scientific research)
o Skilled services, which requires professional training. They are
predominantly found in developed countries. (education)
o Low-skilled services, which requires few qualifications. They are
predominantly found in underdeveloped countries. (street traders)
1. Transport:
� Is the activity that moves people and merchandise between two or
more places.
� The main means of transport are: cars, buses, lorries, trains, boats and
aeroplanes; they use transport infrastructures like roads, motorways,
railways, ports and airports.
� A transport network is made by nodes (points of departure and arrival
for passengers and merchandise); and by pathways (lines that link the
nodes together).
2. Tourism: