Explain the significance of the following terms a embargo b nationalism

Embargo-  it is a word derived from the Spanish embargo, meaning an obstruction or hindrance. It is used generally to mean a ban on trade. The significance of embargos  is that they can have far reaching economic implications on the country or region on which they are imposed. There can be loss of jobs, lowered standard of living and resentment can build up against the government of that country or against the one imposing the embargo and cause uprisings.

Nationalism -  the belief that your own country is better than all others, that it is superior without question or doubt. The significance of nationalism is that in some cases, it can lead to an unhealthy pride causing a country to cut off itself from the rest of the world. But it can also inspire people to break free of a foreign oppressor e.g. as in the American revolution when America broke free from Britain.

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abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.