In how many cities are federal reserve district banks located? 4 12 50 8

In as many as 12 cities, there are Federal Reserve district banks located in the United States of America. The correct option among all the options that are given in the question is the second option. The number of banks has been increased for the purpose of carrying out the daily activities of the Federal Reserve System.

Air pollution: “combustion results in gases such as nitrogen oxides, nitrogen dioxide and particulates. the main causes of air pollution include transport, domestic combustion and industrial processes. pollutants from these sources can cause problems in the immediate vicinity and a distance away.”