Answer:
Religion, language and festivals plays an important role in the cultural diversity of Bangladesh.
Step-by-step explanation:
The role of religion, language and festivals is very important in the cultural diversity of Bangladesh. The religion plays a key role in the difference of culture because people perform their religious practices and these practices becomes part of that culture. Different types of festival also contributed in the diversity of culture in Bangladesh as well as other countries of the world. So we can conclude that religion, language and festivals plays a key role.