A video file takes up 18000 MB of a computer storage's hard drive. How many GB does this file take up?

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.”

Answer feldspar,quartz,mica and amphibole;