Arid climates is where mushroom rocks are
Increased standard of living
the answer is: focus on the most obvious aspect of an emotional situation to the neglect of other relevant information.
The limited cognitive development that preschoolers have made them unable to identify various aspects of human emotion.
Most likely, the can understand when they are happy or upset, But they still can really understand the reason why they are feeling that way.
Primary caretakers such as Parents usually play a really crucial role in this scenario. Abusive parents for example, overtime would make the children grow up thinking that abusive relationship as normal and shouldn't be resulted in negative emotion. This make them become more likely to be involved in abusive relationship with another person.
I'm think its environment, but I don't know for sure :/ sorry