
a. Mining
Mining is an activity that involves making and preparation for further processing of solid, liquid, and gas. Activities in mining activities include excavation, dredging, and suctioning. The purpose of this activity is to take a solid, liquid, and gas in it. Terms mining area that can be used is as follows.
1. area should have enough supplies mining
2. existing minerals have good quality
3. using appropriate cost of extracting, processing, and transportation of mining products.
b. Industry
Industry was an attempt to process the raw materials into finished or semi-finished goods. Industry was needed the right location to grow and thrive. In general, the location of industries affected by physical factors as well as economic and human factors. Physical factors are land, raw materials and energy sources. Economic and human factors that affect the location of industries are capital, labor, transportation, markets, and government.
c. Trade and services
Trading activity includes the distribution of product or environmental management outcomes. Trade is the buying and selling of goods between producers (producer goods) and consumer (buyer). Broadly speaking, trading grouped as follows.
1. Domestic trade
Domestic trade is the buying and selling activities are conducted within the country. Domestic trade can be divided into two, namely the inter-regional trade and inter-island trade is called interinsuler.
2. Foreign trade
Foreign trade is a trade that is conducted between country to country. Foreign trade is generally divided into two kinds, namely export and import trade.