Complex sentence: Due to the uplift, Lifou consists of a wide, flat center surrounded by cliffs which correspond to the ancient recifal cliffs; the coral rock exhibits high porosity and hence, Lifou has no rivers.
Split into simpler sentences: Due to the uplift, Lifou consists of a wide, flat center surrounded by cliffs which correspond to the ancient recifal cliffs. The coral rock exhibits high porosity and hence, Lifou has no rivers.