<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”.
Answer:
The attack on the Pearl Harbor Naval Base by Japan.
Explanation:
After Japan launched their offence on Pearl Harbor, the United States became involved in the war. Before this, we were neutral and didn't want to be involved in the conflict. It was an act of pride by the young men who had enlisted.
Answer:
During the war, many school buildings were either damaged or requisitioned for war use, causing a shortage of suitable places to conduct school lessons. Lessons were held in unusual places such as chapels, pubs and church crypts.
btw :
stay safe! :3
The Han dynasty tried to fix the problems other dynasties had fallen to, such as government that was too centralized or fragmented. Instead, Han Gaozu allocated power to his family. This didn't work too well either, but the dynasty was still successful.
The Qin dynasty was very short, yet of great importance. The founder, Qin Shihuangdi, established centralized rule and divided China into provinces. He relied on his own loyal servants to rule the provinces rather than established nobility and disarmed regional military forces.
The Zhou dynasty established the Mandate of Heaven, a belief that a ruler's authority came from a higher power and could also be taken away if he acted unjustly. In addition to losing office, a ruler could sometimes have further consequences, like the destruction of his ancestral temple.
