21.   In the movies, when volcanoes erupt, lava oozes down the mountain and people turn to stone.

22.   On average, a volcano erupts somewhere about once a week.

23.   On the one hand, there is some risk that the volcano could erupt.

24.   On the contrary, they said, when the volcano erupted recently, spewing rocks and ash over their dream house, they pulled up chairs.

25.   Q. Why do volcanoes erupt?

26.   The volcano did not erupt.

27.   Then the volcano would erupt.

28.   Then, after the volcano erupts, the pair canter through a series of rescue heroics.

29.   Third, there has been an effort to better predict when volcanoes will erupt using new scientific instruments and insights.

30.   Though food and water are scarce, and experts say the volcano could erupt again soon, many people said they preferred to be on home ground.