Final answer:
The three topographical regions of Australia are 1. Coastal Plains, Great Dividing Range, and Central Lowlands.
Step-by-step explanation:
1. The three topographical regions of Australia are:
- Coastal Plains: These are located along the coastline of Australia and are relatively low-lying areas. They are characterized by flat terrain and are influenced by the adjacent ocean.
- Great Dividing Range: This is a mountain chain that extends from Melbourne in the south to Cape York in the north. It is a low-lying range of highlands, averaging about 4,000 feet and reaching an elevation of just over 7,000 feet at its highest peaks.
- Central Lowlands: These are flat and relatively low-lying areas located in the interior of Australia. They consist of deserts and semi-arid plateaus, including the renowned outback region.