There are two options that fits to be correct. But I guess you need only one. So my answer is <span>a. to place the US Army and Navy in one executive department.</span>
A Canal is <span>an artificial waterway constructed to allow the passage of boats or ships inland or to convey water for irrigation.....Is this okay...If so can you mark me brainliest</span>
<span>The time between the first and fourth crusade was 104 years, the formal appeal of the first crusade took place in 1905 in an extraordinary session where the pope addressed the crowd to announce the news. After long years of peace and the appearance of numerous colonies, in the year 1199, Pope Innocent III, I call a new crusade to alleviate the situation of the crossed states.</span>
Answer:
Correct answer is B
. They pioneered the study of algebra.
Explanation:
A is not correct as this concept existed even in Ancient Mesopotamia.
Option B is correct as Arabic mathematicians, especially Muhammad ibn Musa al-Khwarizmi contributed the most to the development of algebra.
C is not correct as Euclid lived in Ancient Greece.
D is also not correct as Arabic numerals are also their important contribution.
