The main source of air pollution in Japan is in- dustry. Recently, a rise in the number of motor vehicles using petroleum fuel has caused pollution from exhaust gases to be- come increasingly important. (According to the web)
Answer:
Golden Ages are periods of great flourishing for an empire, periods during which everything seems to be working just perfectly. They are represented by periods during which your civilization receives bonus Production, Gold, and. Culture for a limited number of turns.
