Mentions any four criteria to declare any urban area as metropolitan city​

The criteria used by countries to decide whether to define a place as 'urban' include population size, population density, type of economic activity, physical characteristics, level of infrastructure, or a combination of these or other criteria. Some simply list their urban areas by name.

it all depends on how long the hours are. i think they wouldn't approve of it. in my opinion.

answer; observing;