Violence, because this is a form of extreme aggresion towards someone or something. Having weapons can make the violence worse because you are now using weapons which inflict more damage than a human can do, and if someone does something to one side, the other side is more likely to fight back in some way, leading to mroe violence.
Answer
Trachea - a large membranous tube reinforced by rings of cartilage, extending from the larynx to the bronchial tubes and conveying air to and from the lungs; the windpipe.
Because it prepares you and helps you with the answers that will be on the test
Because the adolescent feels like they can do whatever they want so they get into bad situations, which can cause a strain in the family.
Individuals should participate in Aerobic exercises to increase cardiovascular endurance. (There's more exercises than just running that can increase your cardiovascular endurance, aerobic is more of a group of activities that do such)