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.
Image File Format Definitions for Prepress Preparation. There are two image main image file format definitions used in a typical graphic design project. Raster (or bitmap) images and vector images. Raster images are generally photographs or images made up of pixels.