Natural hazards are excluded as a cause; however human activities can indirectly affect phenomena such as floods and bush fires. This is considered to be an important topic of the 21st century due to the implications land degradation has upon agronomic productivity, the environment, and its effects on food security.
prepress. 1  of or relating to all operations other than the preparation of the press that are required in preparing a job for printing. ( 2 of a proof) pulled from a finished plate prior to or in lieu of a press proof.
In graphic arts, the term trapping has a different meaning in prepress and in printing. Trapping in prepress. Trapping is the technique that is used to compensate for registration issues of successive colors or images. It ensures that there are no ugly gaps or overlaps in the printed result. Misregistration can occur because of: Mechanical inaccuracies in an imagesetter or CtP system.