Answer:
B. Wind
Explanation:
Wind because there is an infinite supply of it, whereas the others can eventually run out once we use all of it
Answer:
Hirohito became a figurehead after Japan lost and Douglas MacArthur was through with him. But before, he was definitely not a figurehead.
Explanation:
Slavery in ancient Rome played an important role in society and the economy. Besides manual labor, slaves performed many domestic services, and might be employed at highly skilled jobs and professions. Accountants and physicians were often slaves. Slaves of Greek origin in particular might be highly educated.
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Slavery in ancient Rome - Wikipedia
It was A. Al-Khwarizmi who was the Muslim scholar known as the "Prince of Philosophers," who wrote The Book of Healing around A.D. 1000.