Take the Celiac Disease Quiz to learn the causes, symptoms, and treatments for the condition caused by an allergy to gluten, a digestive irritant found in many common foods. Read more: Celiac Disease (Celiac Sprue) Quiz: Test Your Digestive Disease IQ.
Natural disasters fall into three broad groups: 1. Those caused by movements of the Earth. These occur with the minimum amount of warning and include earthquakes, volcanic eruptions and tsunamis. They are difficult to predict and impossible to stop.
Landslides are caused by disturbances in the natural stability of a slope. They can happen after heavy rains, droughts, earthquakes or volcanic eruptions. Mudslides develop when water rapidly collects in the ground and results in a surge of water-soaked rock, earth and debris.