Is a child’s behavior a product of their environment?

It depends this is a question that has to do with nature vs nurture. Nature meaning genes are the explanation to a persons behavior and it’s passed on from parents and nurture meaning the environment shapes the person to be the way they are

In my opinion, yes. ex: if a child grows up with parents that are always swearing around him/her then they’ll tend to copy that type of behaviour. However, children that grow up
with parents that are thankful for everything in life tend to spread it to their children.