Answer:
Government: The governing body (power or authority) of state, nation, or community.
The increase in the trade of silver during the period between 1550 and 1800 is due to the fact that silver was started to be used as a standard currency for trade purposes. Even though it was not considered as "legal tender", as it would later be used for this purpose with the introduction "Bimetallism" in the 19th century, it was widely adopted as a tool for trade among the civilizations that existed at the time.
The reason why many of the machines that sped up production and travel invented during the 18th and 19th centuries is because "<span>D. There was a heightened interest in science during this time," since this was during the age of the Enlightenment. </span>
