-----------------Natural elements-----------------Northern Ireland is located in northwestern Europe, northwest of Great Britain; it borders the republic of Ireland and covers an area of ​​13,840 km².In Northern Ireland we find rivers, lakes and mountains:- RIVERSWe find: Bann, Erne, Foyle, Morne- LAKESWe find: Lough Neagh (the most important), Lough Corrib, Lough Derg, Lower Lough Erne, Lough Mask, Lough Conn, Lough Allen, Upper Lough Erne, Lough Melvin, Lough Leane, Lough Sheelin.-MOUNTAINSWe find: Sawel, Slemish, Slieve Bearnagh, Slieve Binnian, Slieve Commedagh, Slieve Donard, Slieve Muck.-------History-------Northern Ireland became part of Great Britain when the British Parliament passed the Government of Ireland Act in 1920, because since 1801 the island had been incorporated as an integral part of the United Kingdom of Great Britain and Ireland.