Technology Air pollution kris yova ivan

By Yova Kemenchedjieva Ivan Mukov Kristian Nikolov 2009 estimate: Pollutant Maximal exceeding of norm PM10 9.55 µ g/m 3 Nitrogen dioxide 1.64 µ g/m 3 Sulphur dioxide 1.94…

Education Africa

Africa The Land of Great Contrast INSULAR LOCATION North Mediterranean Sea East Gulf of Aden and Indian Ocean West Atlantic Ocean South Southern Ocean Africa is the second…