Natural disasters

Task 1 ( learn the difinitions)

A tsunami is a series of extremely long waves usually they are the result of an earthquake below or near the ocean floor.                    

An avalanche is a mass of snow, rock, ice, and soil that slides down a mountain with the huge speed. 

Drought is a prolonged dry period in the natural climate without precipitation (опади). 

Floods  are the most frequent type of natural disaster. A flood is a rise of water with no place to go. Floods are often caused by heavy rainfall, rapid snowmelt or a storm.

A hurricane is a tropical storm with winds that can reach speed of 74 miles per hour or more.

Task 2

BOOK ex 2 p 23

EXAMPLE

During a tsunami you shouldn't stay indoors if your house is close to the sea. It won't protect you. The waves will break the house's windows and flood the house completely. You need to go outside and find higher ground away from the coast where you will be in safe. Waves can knock down trees and buildings and flood the coastal area.

A tsunami can cause agriculture, economies, energy and the environment problems.