Answer:
Different regions adopted Arabic coins for doing business.
Explanation:
<u>During the Middle Ages, the Islamic Empire was a strong economic center that had developed trade</u>. Muslim merchants were traveling all over Africa, China, and Western Europe for trading, and their influence was therefore spread globally.
<u>That is why the usage of Arabic coins – dinars – spread across different regions.</u> It is suggested that it was a common currency in many places. Archaeologists have found many of Arbanic coins all over, some even thousands of miles away from the locations of the Islamic Empire.
its wealth from oil made it difficult to gain independence and maintain good relations with the West
A synergy between iron and steel, railroads and coal developed at the beginning of the Second Industrial Revolution. Railroads allowed cheap transportation of materials and products, which in turn led to cheap rails to build more roads. Railroads also benefited from cheap coal for their steam locomotives.
Slowing emissions growth, increasing international cooperation, and strengthening science, technology, and institutions.
Secrecy as in government secrecy? Human secrecy? Please explain, thank you : )