Tropical rain forest terrain varies from gentle hills to rugged mountains depending on the location. For instance, the Amazon has some very mountainous terrain while the rain forests in Queensland, Australia, lie on upland basalt tableland.
Although the majority of Queensland's rain forests boast gentle terrain, some of the forest lies on coastal lowlands and upland plateaus. However, these areas are being deforested for agricultural use.
Part of the Amazon rain forest lies in the low-lying Amazon Basin where the Amazon River and hundreds of its tributaries flow. The rain forest has mountainous terrain in parts of Peru to the west and contains lowlands when it reaches Bolivia to the southwest. Despite deforestation, the Amazon rain forest covers nearly 1.5 billion acres with 2.6 million square miles in the Amazon Basin alone. This rain forest houses at least 40,000 different plant species as well as thousands of reptile and animal species. The health of the Amazon is indicative of the health of the planet as a whole. The trees absorb significant amounts of carbon dioxide and release oxygen.
The Congo rain forest is located partially over the Congo River Basin, an area that lies on a low plateau. The rain forest then moves onto the eastern highlands, more rugged terrain. Poaching, pollution and deforestation all threaten this rain forest.