An ... is the shaking of the surface of the Earth.
earthquake
A ... is the sliding down of a mass of earth or rock from a mountain or cliff.
landslide
A ... is a series of fast-moving waves in the ocean caused by powerful earthquakes, volcanic eruptions, or landslides...
tsunami
There was a terrible ... in Portugal. Many houses and shops burned in Lisbon.
fire
A ... can permanently damage a person's or animal's respiratory system and cause death.
Wildfire
It can destroy large buildings, uproot trees and hurl vehicles hundreds of yards. It can also drive straw into trees.
tornado
Heavy rains from the ...'s clouds cause flooding.
hurricane/typhoon
A ... can affect people and animals: economy, lack of water and food, or heat stroke...
drought
A ... can result in additional threats to health, such as floods, mudslides, power outages, drinking water contamination, and wildfires.
volcanic eruption
Its effects include loss of human life, damage to property, destruction of crops, and diseases caused by bacteria and viruses...
flood
It can make buildings fall down and set off landslides.
earthquake
A ... can cause disruption to a whole city, cutting electricity to everything.
Blackout
Caused by large amounts of snow, rushing down a hill.
Avalanche
When lava flows down a hill, after a volcanic eruption.
Lava flow
The collapse of a dam wall, often leading to flooding.
Dam collapse
Very strong winds able to uproot trees.
Gale force winds
