Answer:
However, military officials have been interested in psychiatric issues ... However, by the end of the war, the general opinion among both psychiatrists and ... that only around 40% of all cases of nervous breakdown took place overseas (and only a ... After World War II, most psychiatrists considered aiding returning soldiers
The transcontinental railroad allowed for the transportation of goods over long distances. This was especially helpful for the industrial north at the time.
<u>Answer:</u>
(A) Studying algebraic equations in math.
This was made possible by contributions of Islamic civilizations
<u>Explanation:</u>
“Muslim scholars” contributed largely in the field of Mathematics in the golden age of Islamic civilization. “Arabic number system” is widely used even today.
The first great achievement was introduction of ‘’Arabic numerals’’. It explains the "place-value" theory, which allows numbers to be expressed by “nine figures” and zero. This development made calculation very simple and also paved the way for the development of a completely new division of mathematics which is “algebra”. Even Arabic words entered Western vocabulary like “Al-JABR” became “Algebra”.
