Climate
All Indonesia is affected by the equatorial and equatorial climate. The equatorial climate, extremely humid, dominates in the central part of the island of Borneo. In the equatorial, humid climate, there are small Sunda Islands. The average annual air temperature is about 27 ° C (on the coasts 28 ° C, in the interior of the country 23 ° C, in the mountains 16-26 ° C). Heavy rainfall occurs throughout the year, with the maximum falling in November-December, April-May. The annual rainfall is 1 800 mm. In eastern Java they are about 1,000 mm, in the mountains over 4,000 mm.
Geographical conditions
Indonesia is an island state in Southeast Asia. Over 17,500 islands and islets, including about 6,000 inhabited, are located between the Indo-Chinese peninsula and Australia. The area of the country is 1,919,440 km2. The state occupies most of the Malay Archipelago, including the Great Sunda Islands (Sumatra 421,000 km2, Java 127,000 km2 and Celebes 189,000 km2), Small Sunda Islands (from Bali through Flores to Timor), Moluki and several smaller archipelagos adjacent to large islands. In addition, Indonesia has the western part of New Guinea (413 km2).
Mountainous-upland landscape with coastal lowlands. The landscape features volcanic mountain ranges and lush tropical forests. There are over 400 volcanoes in Indonesia, of which about 100 are active. The highest peak is Puncak Jaya. There is a dense network of rivers throughout Indonesia.
Natural resources
Hard coal, charcoal, copper, cement, sulfur, lignite.