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Classified in Economy
Written at on 
English with a size of 896 bytes.
Services consist of all the activities which do not directly produce tangible godos,but help to satisfy peoples needs and wants
Tertiary sector of the economy has expanded grately in the 20 century
Wholesaler buy large quatities of a product directly from the producer to sell it to retailers
Retailers sells products in small quantities to a consumer
Imports are the purchases of godos and services from a foreign country
Balance of trade is the diferece between the value of a countrys exports and the value of its imports
Infrastructure are the elements necessary for transport such as roads for vehicles , railways of trins , airports for planes and ports for ships