Because it is natural process
Number 2 indicates South America. The other continents are:
1. North America
3. Africa
4. Europe
5. Asia
6. Australia/Oceania
7. Antartica
An exchange rate is how much of your country's currency buys another foreign currency. For some countries, exchange rates constantly change, while others use a fixed exchange rate. The economic and social outlook of a country will influence its currency exchange rate compared to other countries. Hope this helps
The Word does not die for its origins are not fleshly in origin