1) To prevent fraudulent voting
2) All states except North Dakota require voters to be registered, Maine and Wisconsin allow voters to register at any time; Photo i.d., length of residency before voting
In a social system, there are peers and strangers to distract one from pursuing their work. While chatting with others, you may forget your train of thought or a good idea. People are likely to take you away from your work more so than a physical system (in which you can always turn off the TV, but not get people to quiet down)
<span>During World War II, the Tehran and Yalta were significant significant because </span>sites of conferences held by the Big Three . The so called the Big Three is <span>The Tehran, Yalta and Potsdam Conferences. The answer is D, hope it helps. </span>
