Final answer:
Slums develop due to a combination of poverty, unemployment, poor sanitation, and rapid urbanization in cities. These areas often lack essential public services and are characterized by overcrowded and substandard living conditions.
Step-by-step explanation:
Slums develop due to a complex interplay of various socio-economic factors. Key contributors include poverty, leading to the inability to afford better housing, as well as unemployment, which exacerbates financial hardships. Another significant factor is poor sanitation, where inadequate infrastructure leads to health risks and impacts living conditions negatively. Additionally, rapid urbanization seen in cities often leads to overcrowded living situations, with migrants seeking job opportunities but ending up in substandard housing due to lack of affordability and availability. Issues like corrupt governance, ethnic violence, and global market isolation also play roles in the proliferation of slums.
Poor urban planning contributes to sanitation issues, including lack of clean water, unclosed sewage systems, and inadequate waste management. Crowded housing with poor ventilation and drainage, along with a lack of public services such as electricity and transportation, all contribute to the development and expansion of slums.