Which of the following was not, at one point, a part of french indochina?

Burma was part of Britains empire until 1947. So was Malaya because Singapore was one of Britains most prized possessions. Thailand was left as an independent kingdom between the two empires as a buffer.

Burma was part of Britains empire until 1947. i hope that helps

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.”