The primary economic sector refers to the extraction and collection of raw materials and other economically important materials, from the environment. This sector includes the mining processes, agricultural practice, forestry, fishing, hunting and grazing of animals. These raw materials and natural resources are helpful in increasing the economy of a country.
These materials after being collected from the various fields are used for various purposes. For example, the extraction of minerals such as gold and silver from the field of mining is used to make jewelry and other precious stones.
The draw back would be that many crimes would go unpunished. Some victims could be to scared, some would prefer to forget about the crime and focus on other things in their lives.
Technically speaking a teacher would assume that Paul is cheating. But in some occasions there are kids that are way more acedmically advanced than other kids, or the kid could have already taken a similar quiz and known what to do.