Question

watch is the relationship between migration and slums​

Answer 1

migration means going one place to another

Answer 2

when people don't seek proper facilities in village and towns ; or due to use of machines , lack of job makes people move from VILLAGES to cities

this is called MIGRATION

but they don't have money to buy new houses

so what they do is build shelters like SLUMS to live

so in easy words

MIGRATION is a MOVEMENT / Verb

SLUMS is type of SHELTER/ noun