How can a redox reaction be used as a source of electrical energy?
a. two half-reactions must involve more than one electron.
b. two half-reactions must be physically separated.
c. one half-reaction must involve two metals.
d. one half-reaction must use a metal wire electrode.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

answeridentity;