They are distributed over the whole island, but are perhaps most frequent towards the centre and in the Nurra.
The cotton industry is distributed in three principal groups.
Education is very widely distributed, and in every state it is compulsory for children of school ages to attend school.
Deposits have also been found in the New England and southern districts, as well as at Broken Hill, showing that the mineral is widely distributed throughout the state.
The rainfall is very unequally distributed: in the western part, which comes near to the limits of the rainless region of Asia, it is very scanty, and scarcely averages more than 5 in.; in the south-west the fall is more copious, sometimes exceeding 100 in.