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.
Preppy or prep refers to a subculture in the United States associated with the old private Northeastern university-preparatory schools. The terms are used to denote a person seen as characteristic of a student or alumnus of these schools. Characteristics of preps in the past include a particular subcultural speech, vocabulary, dress, mannerisms, etiquette, reflective of an upper-class upbringing.