1) Borneo island
2) Sumatra island
3) Java island
4) Sulawesi island
Explanation:
On August 26, 2019, The President of Indonesia, Joko Widodo stated that the government has chosen sparsely populated East Kalimantan province on forested Borneo island, known for orangutans for its new capital. The current capital of Jakarta, overcrowded ( home to more than 10 million people), sits on watery land. Parts of the city are sinking by as much as 25cm a year and almost half now sits below sea level.