Complex sentence: The Jos Plateau is a plateau region covering 7770 km² having an average altitude of 1280 metres, with its highest point at 2010 metres, which is the only region of temperate climate of Nigeria.
Split into simpler sentences: The Jos Plateau is a plateau region of Nigeria covering 7770 km². With an average altitude of 1280 metres, with its highest point at 2010 metres, it is the only region of temperate climate of Nigeria.