The islands of Indonesia were formed from volcanic eruptions. The volcanoes are at the same reason behind the atrocities of the country and its agricultural fertility. The Greater Sunda Islands section comprises of all the major islands of Indonesia like, Sumatra, Sulawesi, and Java. Bali, Lombok and Komodo are parts of the Smaller Sunda islands. The topography of the islands of Indonesia is mountainous. The formations under the sea are an important part of geography of Indonesia.
As Indonesia is located near the equator the climatic condition of this country is temperate in nature. There is high amount of humidity and rainfall is high especially during the monsoons. The volcanoes and sea also affects the climatic conditions of the country very significantly.
These days the protection and preservation of the environment and geography of Indonesia is the prime concern for the government.