Why can a population share a habitat but not a niche? answer in a complete sentence

They rather share a habitat because they know they are all human but why not a niche is because it is a place there in and if they are in a position of there there own place like a home or like a apartment

Answerstratovolcanoes///near or in the ring of fire;

Did you know it's illegal to own only one guinea pig in switzerland?   : )