Final answer:
The winter dry season is related to the seasonal pulse of the monsoons. South Asia experiences a dry season during the winter months due to the cool, dry winds of the winter monsoon.
Step-by-step explanation:
The winter dry season is related to the seasonal pulse of the monsoons. In South Asia, the monsoon season brings heavy rains between June and September, providing the water needed for agricultural production. However, in the winter months, the cold, dry air above the Asian continent blows to the south, causing a winter monsoon characterized by cool, dry winds. As a result, South Asia experiences a dry season during the winter.