Jakarta, the capital of Indonesia, is a city built on swampy land. As a result, the ground level is quite low, and much of the city is below sea level. In some areas, the ground level is over 20 meters below sea level.
The low ground level has caused many problems for Jakarta. The city is prone to flooding, and the groundwater is often contaminated with pollutants. In addition, the low ground level makes it difficult to build infrastructure and …