Step 1: Trace how a slum forms.
Rural to urban migration brings people to cities faster than formal housing can be built, so newcomers settle informally on whatever vacant land they can find, often near railway lines, drains or riverbanks.
Step 2: Follow the chain of problems that follow from this.
Informal building means weak, cramped housing; lack of planning means no piped water or sewage lines; both together mean disease spreads fast; low-skill migrants take insecure informal jobs, and their children often cannot access good schools, which keeps the cycle of poverty going.
Final Answer:
Following this chain shows slum problems as linked: crowded unsafe housing, missing basic services, health hazards and continuing poverty and insecurity for residents.$\boxed{\text{A linked chain of housing, health, and poverty problems}}$