Mercury orbits the Sun closer than any other planet in the Solar System, so youâd think that the temperature of Mercury is hot, and hotter. Youâd be right. The side of Mercury facing the Sun can reach 700 Kelvin, or 426 degrees Celsius.
Such problem children can make other children less likely to cooperate, which ultimately sabotages the entire enterprise. The strain on society of enforcing compulsory education must also be considered. Maintaining societal mechanisms necessary to ensure compliance requires no small amount of resources.
In the US, attending school through the twelfth grade, driving on the right side of the road, and obtaining a social security number are all mandatory. The phrase mandatory requirement is redundant. A mandatory action is something that is required, obligatory, or compulsory. Like letting your Great Aunt Edna pinch your cheeks or passing gym to get your diploma. Mandatory is often used in opposition to optional.