Jamaica's Usain Bolt earned a double and claimed a record 10th gold medal with a convincing victory in the 200 meters on Thursday at the World Athletics Championships in Beijing, denying rival Justin Gatlin with a time of 19.55.
Foreign exchange markets facilitate the trade of one foreign currency for another. Most exchanges are made in bank deposits and involve U.S. dollars. Over a trillion dollars in foreign exchange trades take place every day; foreign exchange dealers handle most transactions.
In the foreign exchange market, commodity currencies generally refer to the Australian dollar, Canadian dollar, New Zealand dollar, Norwegian krone, South African rand, Brazilian real, Russian ruble and the Chilean peso.