Who is the co-author of the discussed study?
Peter Jones
What does "an adult" mean according to an article?
An adult is a person usually between 18 and 21 (depending on a country)
What does Peter Jones think of the etiquette "child/adult"?
It's just a simple invention to follow the pattern of our current system.
Is it possible to categorize people according to the article?
It seems to be an absurd.
the part of your life when you are a child is called . . .
childhood
The police have launched an initiative to _________ (tackling / tackle / tackled / have tackled) rising crime
tackle
When do our brains arrive at the mature stage?
At the age of 30