Letters, postcards, programs, calendars, folders, and catalogs are all examples of

The examples that are provided above is considered to be a direct mail advertising. This is considered to be a marketing effort in which the way that they advertised is through with the use of mail services that is sent to their consumers.

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explanation: because you need to reduce the pollution on land,the exhaust fumes will stop,and stop it in water,the oil that is in the oceanharms the fish   sorry if you   have been waiting long  

okay what's the question?