Помогите составить все 5 типов вопросов (1. Общий; 2. Разве ... не; 3. Альтернативный; 4. Разделительный; 5. Специальные) к предложению: It's estimated that 500 mln people mostly within the developing world live under the threat posed by volcanoes.

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?