He worked on the telescope by improveing it and he studied astronomy
2nd one
i hope this can help youu
<span>Eisenhower Doctrine, (Jan. 5, 1957), in the Cold War period after world War II, U.S. foreign-policy pronouncement by President Dwight
D.Eisenhower promising military or economic aid to any Middle Eastern country needing help in resisting communist aggression.</span>
The Wadis is the driest place until the rainy season and the Rub 'al Khali desert.Which is the biggest desert in the Arabian Peninsula., this isnt my answer i took it from someone else but it is still correct
Assuming the diplomats you are referring to are Benjamin Franklin, John Jay, and John Adams, the correct answer is John Adams.
He was the second president of the United States in America, right after George Washington. Franklin and Jay, even though they were influential politicians and diplomats, never became presidents.
