Final answer:
The large public baths at Mohenjo-Daro were mainly used for ritual cleansing, reflecting the social and religious aspects of the Indus Valley civilization's daily life.
Step-by-step explanation:
The large baths at Mohenjo-Daro were likely used for ritual cleansing. These public baths, which included intricate bathing facilities with various temperature rooms and areas for exercise, indicate a sophisticated approach to not just hygiene but also social and possibly religious activities. The nearby evidence of a granary, residential areas for the elite, and halls suggest that these baths played a part in the social and religious lives of the inhabitants. These baths did not serve purely practical purposes like watering of livestock; instead, they were part of a complex urban infrastructure that underscored the importance of community, cleanliness, and ritual in the daily lives of the Indus Valley civilization.