--subdivision Energy consumption under military services, types of industries and topical headings, e.g. Agriculture--Energy consumption; Construction industry--Energy consumption; Dwellings--Energy consumption; and subdivision Fuel consumption under types of machinery, land vehicles, etc., e.g. Agricultural machinery--Fuel consumption; Automobiles--Fuel consumption
Consumption of water -- See Water consumption Here are entered works on quantities of water used. Works on the various uses of water are entered under Water use.
Contagion (Social psychology) -- See Also Memetics Here are entered works on the school of thought that studies the transmission of ideas by viewing them as being contagious living organisms called memes.
Contagious marketing -- See Viral marketing Here are entered works on an Internet marketing and advertising technique that propagates a marketing message by inducing Web sites or users to pass it on to other sites or users.