We the people of the united states, in order to form a more perfect union, establish justice, insure domestic tranquility, provide for the common defence, promote the general welfare, and secure the blessings of liberty to ourselves and our posterity, do ordain and establish this constitution for the united states of america.
-preamble to the us constitution
which function or role of government is not expressed within the preamble?
a) preserve freedom
b) maintain a peaceful nation
c) protect the bill of rights
d) defend against external enemies

The correct answer is C. To protect the Bill of Rights is not a function of government expressed within the Preamble.

Explanation:

The Preamble to the Constitution of the United States could never have made any reference to the fulfillment of the rights set forth in the Bill of Rights for a basic reason: the Preamble was created in 1787 along with the Constitution, during the Philadelphia Convention. The Bill of Rights, in turn, was approved in 1791 in response to the fears of the Anti-Federalists about the scope of citizen rights in the recently ratified Constitution.

Therefore, due to this temporary issue, the Preamble could never make any mention of the Bill of Rights.

the underground railroad (apocope of the metropolitan railroad) is a system of urban trains located within a city and its metropolitan area. it is characterized for being a massive transport of passengers in the big cities, uniting diverse zones and their environs, with high capacity and frequency and in segregated form to other systems of transport. metropolitan railroads are built underground or on the surface, although most systems use mixed models where sections are combined in both modalities.

1 - as a result, the metro tends to reduce car travel for two reasons: first, due to the greater transfer of users from the car and, second, due to the reduction in the acquisition of cars in homes located in sectors near the stations of the metro.

2 -the metro allows to contribute effectively to the achievement of all the objectives of an urban development policy: it improves the efficiency of the city's economy by reducing travel costs and also generates a higher level of activities in the city center, taking advantage of of the agglomeration economies.

3 -it is a clean means of transport, since it uses renewable energy (usually electricity), taking care of the environment and avoiding excessive pollution.

d) in the state of iowa