Question

explain wht is a post office and how they help us in a very detailed way..​

Answer 1

Explanation: post office is a means of communication  which helps to transport letters

letters contain some information which needs to be communicate with others from far of places  

so the letters are sent to post office and a post man collects the letters and give them to their respective people who need to read them in this day techonology made the life easier now instead of keeping letters in post office every one now easily communicate in WHATS APP or can communicate in messages but post office is now also a good means of communication .