I'm pretty sure (1.) is A, and I know for a fact that (3.) is D because slavery was a regular practice between quarreling tribes. I have no clue what (2.) is. Best of luck.
Scarcity refers to the condition of insufficiency where the human beings are incapable to full fill their wants in sufficient manner. In other words, it is a situation of fewer resources in comparison to unlimited human wants. Human wants are unlimited. we may satisfy some of our wants but soon new wants arise. It is impossible to produce goods and services so as to satisfy all wants of people. Thus scarcity explains the relationship between limited resources and unlimited wants and the problem there in.
They were angry that Britain <span>had limited the area available for settlement.this is the answer
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September 11, 2001, was the day that terrorists attacked "<span>d. the World Trade Center and Pentagon," since this was instigated by terrorists who wished to strike fear into the hearts of the American public. </span>