Geography [2 Mark Question Answer]

Corals are a hard substance composed of a skeleton of tiny marine creatures called coral polyps. When corals die their hard skeletons remain fixed in place. Since these polyps live in colonies when they die their large accumulation of skeletons forms coral reefs which are circular or ridge-like.

The Great Dividing range in the east divides the flow of rivers in the region. The rivers that flow down the eastern slopes’ are short and perennial and drain into the Pacific Ocean. The rivers that flow down the western slopes are longer and flow to central lowlands and have inland drainage.

The Eastern Highlands are also called the Great Dividing Range because the mountains form the main watershed of Australia. A number of Australia’s principal rivers originate here. The Snowy River flows down the steep eastern slope while the Darling, Lachlan, and Murrumbidgee Rivers flow down the western slope and join the Murray River.