Examlex
________ occur about 130 km above Earth's surface near the polar regions when energy in the solar wind guided by Earth's magnetic field excites gases in the upper atmosphere.
Canadian Dollar
The official currency of Canada, represented by CAD or C$, and divided into 100 cents.
Exchange Rate
The price at which one currency can be exchanged for another currency in the foreign exchange market.
US Dollars
The currency issued by the United States, functioning as its primary medium of exchange and a global reserve currency.
Tourism
The activity of traveling to and staying in places outside one's usual environment for leisure, business, or other purposes.
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