What are the key geographical features of the Amazon Rainforest?

The Amazon Rainforest, the largest tropical rainforest in the world, spans over 5.5 million square kilometers across nine countries. It is home to approximately 390 billion individual trees, representing about 16,000 species. The rainforest features a complex ecosystem with diverse habitats, including river systems, wetlands, and mountainous regions. The Amazon River, one of the longest rivers globally, flows through this region, contributing to its rich biodiversity and unique climatic conditions.