Explanation:
Exams and grades can sometimes lead to stress and anxiety. It is costly and rigid. An unprofessional and non-standard education system may also cause wastage of time and money.
The correct answer would be Omission.
Indeed, if the person who failed to act had the legal duties to do it (like a police officer or a doctor). This is considered a crime of omission since there was <em>mens rea</em> (guilty mind in Latin); meaning that the offender knew that failure to act despite his established duty would result in injury to the other party.
2. average temperature and rainfall is the correct answer