In new england, foot-long sandwiches are called "grinders," while in many other parts of the country they are called "subs." this is an example of the impact of

Regional culture

Explanation:

Regional culture refers to the activities that are carried out in the particular geographical areas as a part of their culture which are created and fostered by the region's residents and reflecting ethnic, linguistic, historical and cultural regional identity of the region

Here,

the calling the foot long sandwiches as subs or grinders reflects the regional culture of naming it homogeneously around their region and reflects the different identities of the New England and the other parts of the country.

the federal government of the united states was established by the constitution. us is a presidential republic. the president is head of state, head of government and of a two party legislative and electoral system. the supreme court balances the powers of the federal and the state government. yhe executive branch is headed by the oresident. there are two chambers of congress, the senate and the house of representatives. judicial power is exercised by the judicial branch (or judiciary), comprised of the supreme court and lower federal courts. the judiciary's function is to interpret the   constitution as well as the federal laws and regulations.