Because all the rain falls on the eastern side.
I think this is called orographic rainfall. The moist air coming from the sea - Tasman in this case - rises when it reaches the mountains and the air cools and the rain is formed and falls on the eastern side of the mountains.
the great dividing range got it's name from dividing the east from the west
No, they are not related. The Great Dividing Range is in Eastern Australia while the Rocky Mountains are located in the West of North America.
The Great Dividing Range runs down the eastern coast and the southeast of Australia. It begins in far north Queensland, continues through New South Wales, south to Victoria and then west to the Grampians of western Victoria.
The eastern side of the Great Dividing Range is more lush. This is what Lieutenant James Cook saw as he charted the eatsern coast in 1770, and what led him to claim the land which he called "New South Wales" for England. Far less rain can actually penetrate west inland past the Great Dividing Range, which is why the interior is so much drier.
The Blue Mountains, which form part of the Great Dividing Range.
The Great Dividing Range stretches from Cape York in far north Queensland to the southern state of Victoria, ending at the Grampians mountain range in the west.
The Great Dividing Range of Australia is so callled because it forms a watershed. Rivers on the east side flow from the highlands toward the Pacific Ocean; on the west side they flow toward the central lowlands. In southern New South Wales and Eastern Victoria are the Australian Alps, the continent's tallest mountains. Mount Kosciusko, Australia's highest peak, rises to a height of 7,316 feet (2,230 m.).
Well there has been many types of landforms also know as (biomes) that have developed over the dividing range such as rain forests ect. so all biomes are technically in the great dividing range.
The great dividing range along the east coast of Australia has a large effect on the rain fall to the west of the range.
Great Dividing RangeThe Great Dividing Range is by no means restricted to New South Wales. It extends from the far north of Queensland to southern Victoria and around to the west, ending at the Grampians mountain range.
The Great Dividing Range is a lengthy mountain range that continues for several thousand kilometres down the eastern coast of Australia, and around to western Victoria. Therefore, innumerable people have climbed different parts of the range at different times. The very first people to actually cross the Great Dividing Range, over the Blue Mountains west of Sydney, were early Australian explorers Lawson, Blaxland and Wentworth.
The Great Dividing Range reaches from Cape York Peninsula in Australia's north to the Grampians, in Victoria's west.