Trinity Test in 1945 <span>was the </span>code name<span> of the first detonation of a </span>nuclear weapon. The test was a part of the Manhattan project that is led by the United States. The result of the Trinity Test led to the people involved conclude that it is a very dangerous weapon.
The best and most correct answer among the choices provided by your question is the second choice which is "railroad tracks."
<span>By 1860 the Midwest and the East were united by a network of railroad tracks.</span>
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sentatives and the Senate, shall, before it become a Law, be presented to the President of the United States; If he approve he shall sign it, but if not he shall return it, with his Objections to that House in which it shall have originated, who shall enter the Objections at large on their Journal, and proceed to reconsider it. If after such Reconsideration two thirds of that House shall agree to pass the Bill, it shall be sent, together with the Objections, to the other House, by which it shall likewise be
They moved into Alaska during an Ice Age when there was ice from Eastern Asia and they walked to Alaska
