Leia o texto abaixo e escolha a alternativa correta. The Amazon rainforest is the largest tropical rainforest in the world, covering over 5.5 million square kilometers. It is home to an incredible array of plant and animal species, many of which are found nowhere else on Earth. Unfortunately, the Amazon is facing severe threats, including deforestation and climate change. According to the text, what is the main characteristic of the Amazon rainforest?