A period of unusually and extremely hot weather?
A heatwave
A storm that carries clouds of dust in the wind over a wide area?
A dust storm
A snowstorm with very strong winds?
A blizzard
A rain that contains harmful chemicals from factory gases and that damages trees, crops and buildings?
Acid rain
A violent storm with very strong winds, especially in the western Atlantic Ocean and north-eastern Pacific Ocean?
A hurricane / a tropical cyclone
Any infectious disease that kills a lot of people?
A plague / an epidemic
A large amount of water covering an area that is usually dry?
A flood
A violent storm with very strong winds which move in a circle?
A tornado / A twister
A long period of time when there is little or no rain?
A drought
A mass of earth, rock, etc. that falls down the slope of a mountain (or a cliff)?
A landslide / A landfall
A storm in a desert in which sand is blown into the air by strong winds?
A sandstorm
A mass of snow, ice and rock that falls down the side of a mountain?
An avalanche / A snowslide
A storm with thunder and lightning and usually very heavy rain?
A thunderstorm / an electric(al) storm / a lightning storm
A lack of food during a long period of time in a region?
A famine
An occasion when a volcano suddenly throws out burning rocks, smoke, etc?
A volcanic eruption
An extremely large wave in the sea caused by an earthquake?
A tsunami / A tidal wave
Flames that are out of control and destroy buildings, trees, etc.?
Fire
A period when the weather is colder than usual?
A cold wave / a cold snap / a cold spell
A sudden, violent shaking of the earth’s surface?
A(n) (earth)quake
A storm during which hail falls from the sky?
A hailstorm