Final answer:
South Asia has large expanses of rainforests due to the significant seasonal rains from monsoon systems.
Step-by-step explanation:
Because it experiences significant seasonal rains from monsoon systems, South Asia has large expanses of rainforests. The monsoon rains create a warm and humid climate that supports the growth of lush vegetation. These rainforests are home to a diverse range of plant and animal species.
Learn more about rainforests in South Asia