Which climate characteristic contributes to the sparse population of Western Australia?

The sparse population of Western Australia is largely attributed to the arid and semi-arid climate characteristic of the region. This type of climate is marked by low rainfall and high temperatures, leading to dryness and limited agricultural opportunities. The lack of sufficient water resources makes it difficult for large communities to establish and thrive. Consequently, the severe conditions of an arid environment result in fewer people being able to live sustainably in the area.

In contrast, high rainfall and mild temperatures typically support larger populations due to better living conditions and agricultural potential. Consistent weather patterns, while beneficial in some contexts, do not address the fundamental challenges posed by an arid climate. Thus, the arid and semi-arid climate is the primary factor that explains the sparsity of population in Western Australia.