Examlex
Which of the following vitamins acts as a hormone in the human body?
Speculation
The act of investing in financial assets with the hope of profiting from future price changes, often involving significant risk.
Nation's Currency
The legally accepted form of money that circulates within a country and serves as a medium of exchange, store of value, and unit of account.
Exchange-Rate Systems
The rules and conventions that govern how the value of a country's currency is determined in relation to other currencies.
European Euro
The official currency of 19 out of the 27 European Union countries, used as a common currency to facilitate trade and economic stability in the region.
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