Question

Population density is high on the eastern coastal areas of Australia.Why?​

Answer 1

Explanation:

Eastern coastal plain is densely populated because the eastern coastal plain is very fertile and having large number of towns and cities.

Answer 2

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Soils and water. Much of the rest of the continent is either desert, semi desert or tropical monsoonal.

It is not because the first British settlements were there. The first British settlements were there because of the climate and soils. The Dutch had surveyed most of the northern, western and southern coasts of the continent, and found them to be unattractive to conventional agriculture up to 160 years before the British sent James Cook to survey the east coast.

Cook found the east coast to be relatively fertile and well-watered so, when the British decided to settle (or invade) the country they started at the most-temperate and fertile section of the Australian coast.

Later, a settlement was made in south-western Australia but the area of well-watered and fertile land is much smaller than the area in the east. Its remoteness comes from the reality that it is too small an area to support a large population.

In reality it is closer to many major centres of population than eastern Australia is but there are many fewer people so it feels more isolated.