The five main latitude regions of the Earth's surface comprise geographical zones, divided by the major circles of latitude. The differences between them relate to climate. They are as follows: 1  The North Frigid Zone, north of the Arctic Circle, 4.12% of Earth's surface.he five main latitude regions of the Earth's surface comprise geographical zones, divided by the major circles of latitude. The differences between them relate to climate. They are as follows: 1  The North Frigid Zone, north of the Arctic Circle, 4.12% of Earth's surface.
According to Wikipedia, at six years of age, Kayla Rolland is believed to be the youngest school shooting victim in U.S. history. Dedric Owens is the youngest school shooter. Due to his age (born on May 5, 1993) and the legal claim that at that age he would have the lack of ability to form intent, Owens was not charged with murder.
A school shooting is a form of mass shooting attack on an educational institution, such as a school or university. School shootings have sparked a political debate over gun violence, zero tolerance policies, and gun control. The United States has the highest number of school-related shootings. From 2013 to October 2015 there were 142 school shootings in the United States.