Read the two passages below and answer the question.

Passage A: The Amazon Rainforest, located in South America, is the largest tropical rainforest in the world. It covers an area of approximately 5.5 million square kilometers and is home to an incredibly diverse array of plant and animal species. The Amazon River, which flows through the rainforest, is the largest river in the world by volume of water.

Passage B: The Congo Rainforest, situated in Central Africa, is the second-largest tropical rainforest globally, spanning about 1.8 million square kilometers. It is characterized by its dense vegetation, numerous rivers, and rich biodiversity, including iconic species like gorillas and elephants.

Which statement accurately describes a difference between the Amazon Rainforest and the Congo Rainforest?