One challenge to keeping indonesia united is its 1.lack of natural resources 2.democratic government 3.cultural heterogeneity

One challenge to keeping Indonesia united is its cultural heterogeneity.

To add, cultural heterogeneity refers to differences in cultural identity related to, for instance, class, ethnicity, language, traditions, religion, sense of place, and many other cultural aspects. These differences can make it more or less difficult for people to communicate, trust and co-operate with each-other.

answer; (religion)

b. parliament was weaker than the monarchy.