The rationale for the civil service rests on the a. goal of centralizing government employment at the federal level. b. desire to create a nonpartisan government service and promotion on the basis of merit. c. General Schedule rating system for patronage appointees. d. need to separate military institutions from civilian institutions to prevent undue military influence. e. need for job replacements when a new party comes to power.

b. desire to create a nonpartisan government service and promotion on the basis of merit.

Explanation:

The civil service is the term used to refer to a sector of the government that employs bureaucrats hired on merit. This is an important characteristic, as it means that these people are neither appointed, nor elected, as many other members of government. Because of these, members of the civil service are nonpartian, and their tenure usually survives political transitions. These people usually work for government institutions.

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clean air is essential for health and survival

clean air provides nitrogen gas for plant respiration

clean air supplies oxygen that enables living organisms to breathe

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sorry if this doesn't