Answer:
Declaration of war
Explanation:
If the trade is limited to punish a nation, then it is likely an act of war.
I.E. America's cut in oil trade with Japan during WW2 because Japan allied with Germany, which led to Japan attacking America out of desperation/anger
Early farmers who cultivated crops and domesticated animals
The development of railroads was one of the most important phenomena of the Industrial Revolution. Trains provided supplies and equipment and a lifeline of the army. Trains made a big impact on the citizens. Railroads were visible symbols of industry and modernity during the Civil War.
"b. They keep herds of animals" and "<span>c. Their food supply is more reliable than that of farmers" would be be accurate descriptions, since hunter-gatherers need to move around because they have not domesticated plants or animals. </span>
