Which of the following describes one of the main landscapes of Australia?

The Eastern Highlands, also known as the Great Dividing Range, are a significant feature of Australia's geography and landscape. This mountain range stretches along the eastern coastline, from Queensland down through New South Wales and into Victoria. It plays a crucial role in affecting the climate of the region, contributing to rainfall patterns and creating diverse ecosystems on both its eastern and western faces.

The Eastern Highlands are not just notable for their elevation but also for their varied topography, which includes rugged mountains, plateaus, and valleys. This diversity supports a wide range of flora and fauna, making the Highlands a critical area for biodiversity in Australia. Additionally, this region is rich in historical and cultural significance, with several Indigenous communities having deep connections to the land.

Other choices, while they describe certain Australian landscapes, do not capture the primary geographical features in the same way that the Eastern Highlands do. Coastal valleys and temperate forests, for example, exist but are less defining of the country’s geography compared to the prominent and expansive characteristics of the Eastern Highlands. Mountain ranges do exist, but the focus on the Great Dividing Range specifically highlights its importance and influence on Australia's geography.