Discusses how tornadoes form and offers information on some of history's worst twisters and the devastating effects their powerful winds cause, including overturned cars, destroyed houses and snapped power lines.
Discusses how floods happen and offers information on some of history's worst floods, and their devastating effects, including landslides, swept away buildings and cars, and toxic spills.
Discusses how earthquakes form and offers information on some of history's worst earthquakes and their devastating effects, including landslides, collapsed buildings and fires.
