Answer:
The age of the Earth is estimated to be 4.543 billion years
It was primarily the development of agriculture that led to the development of the first city states, since this allowed for there to be a surplus of food, which allowed people to have labor specialization.
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Whenever the President transmits to the President pro tempore of the Senate and the Speaker of the House of Representatives his written declaration that he is unable to discharge the powers and duties of his office, and until he transmits to them a written declaration to the contrary, such powers and duties shall be discharged by the Vice President as Acting President.
<span>United States will take only a few minutes to have from MRBM. Medium-range ballistic missile would be launched from the Soviet Union to the US and it would only take 20 minutes.
</span><span>So if you are looking for a number answer then 3 -10 minutes would be it.</span>