Помогите составить все 5 типов вопросов (1. Общий; 2. Разве… не; 3. Альтернативный; 4.…

1- do you know how many people live under the threat posed by volcanoes? 2-do you know that volcanoes can be really dangerous for people, dont you? 3- do people fear volcanic eruptions or dont care? 4-500 mln people live under the threat posed by volcanoes, dont they? 5- how many people live under the thear posed by volcanoes?