Acollection of people who exist in same place at the same time, but who don't interact or share a sense of identify are known as:

Crowds

Explanation:

Crowds

crowds referred to that collective group of people who are available at one place but don't interact to each other. It is a large group of people gathered at some place.

The our category of crowds are

1) casual crowds

2) conventional crowds

3) expressive crowds

4) acting crowds

can you show the map

answer: fact: italy has over 300 islands ranging from extremely small uninhabited islands to the huge island of sicily.

explanation:

opinion: italy has way to many islands