Объяснение:
Tornadoes are vertical funnels of rapidly spinning air. Twisters are born in thunderstorms and are often accompanied by hail. Water droplets from the mesocyclone's moist air form a funnel cloud. The funnel continues to grow and eventually it descends from the cloud. When it touches the ground, it becomes a tornado. A tornado forms when changes in wind speed and direction create a horizontal spinning effect within a storm cell. Tornadoes are classified as weak, strong, or violent storms. Once a tornado hits the ground, it may live for as little as a few seconds or as long as three hours. People, cars, and even buildings may be hurled aloft by tornado-force winds - or simply blown away. Most injuries and deaths are caused by flying debris. Today the average warning time for a tornado alert is 13 minutes. Tornadoes can also be identified by warning signs that include a dark, greenish sky, large hail, and a powerful train-like roar. Massive tornadoes, however, the ones capable of widespread destruction and many deaths, can roar along as fast as 480 kilometers an hour. These violent storms occur around the world.
Торнадо - это вертикальные воронки быстро вращающегося воздуха.
Твистеры рождаются в грозах и часто сопровождаются градом.
Капли воды из влажного воздуха мезоциклона образуют воронкообразное облако. Воронка продолжает расти и в конце концов спускается из облака. Когда он касается земли, он становится торнадо.
Торнадо образуется, когда изменения скорости и направления ветра создают эффект горизонтального вращения внутри ливневой ячейки.
Торнадо классифицируются как слабые, сильные или сильные штормы.
Как только торнадо падает на землю, он может прожить всего несколько секунд или целых три часа.
Люди, машины и даже здания могут быть отброшены на ветер ветрами торнадо или просто снесены. Большинство травм и смертей вызвано летающими обломками.
Сегодня среднее время предупреждения о торнадо составляет 13 минут. Торнадо можно также определить по предупреждающим знакам, включающим темное зеленоватое небо, большой град и мощный рев, похожий на поезд.
Однако массивные торнадо к повсеместному разрушению и гибели многих людей, могут реветь со скоростью до 480 километров в час.
Эти сильные штормы происходят по всему миру.
Today teenagers are violent more than in the last generation. In the last few years the violence spread all over the country. In these days there are some external features that we can recognize violent people. Teachers, parents and teenagers report that violence increases every day.
Alcohol today is more than just a problem among adults, but it has become a problem among teens. During the past ten years we had witnessed a steady decline in the number of alcohol-related motor vehicle deaths in the youth population, but there is a rise also in alcohol consumption overall. Alcohol is a main reason for violence whether it is growing up with alcohol users and abusers or the youth using the alcohol substance themselves. High school students who drink alcohol or use illegal drugs, including anabolic steroids, are more than twice as likely to carry a weapon or get into a physical fight than teenagers who deny drug use, according to a study in the August issue of the AMA's Archives of Pediatrics and Adolescent Medicine.
The situation is dangerous. We must fight with this problem and involve teenagers into sport and other useful activities