After years of humans’ interactions with the environment by polluting its rivers, the Earth became damaged and irreparable.

When the shy child rarely spoke to his classmates, the school psychologist required at least one social interaction with a friend from school each day.

Since most people are addicted to their cell phones, there is very little interaction among people in a waiting room.

Interaction on the internet needs to be monitored by parents because teenagers may chat with dangerous strangers.

When the teacher saw the interaction between children from two different countries, she was pleased to see that they were learning about each other’s cultures.