Answer: C. the downing of an American U-2 spy plane over the Soviet Union.
The downing of the American spy plane in Soviet Union named U-2 contributed mostly to the cancellation of a scheduled summit between the Soviet Union's leader Nikita Khrushchev and that of President Dwight D. Eisenhower.
<span>Each state has representatives in the House, the number of representatives each state receives is determined by the population of each state. Every state has at least one representative, but the higher the population, the more representatives each state receives in the house to represent their state. Currently there are 435 representatives in the house, this number has been fixed by lay since 1911.</span>
<h2>
Science and medicine got to a great point of development and sophistication in Ancient Egyptian civilization. In medicine, the main areas they studied the most were surgery, anatomy, pharmacology, and dentistry. In surgery, the Egyptian doctors used different tools like knives, scalpels, forceps, among others.</h2>
<em><u>Brainliest appreciated </u></em>
In 1820, amid growing sectional tensions over the issue of slavery, the U.S. Congress passed a law that admitted Missouri to the Union as a slave state and Maine as a free state, while banning slavery from the remaining Louisiana Purchase lands located north of the 36º 30' parallel.
