An overflow of a large amount of water beyond its normal limits
FLOOD
Waste material, trash, litter
RUBBISH
To contaminate
TO POLLUTE
Synonym of trash/rubbish
LITTER
A sudden violent shaking of the ground, typically causing great destruction as a result of movements within the earth's crust
EARTHQUAKE
Power derived from the use of physical or chemical resources, especially to provide light and heat
ENERGY
To reduce - To reuse - ...
TO RECYCLE
Synonym of contamination
POLLUTION
A large, destructive fire that spreads quickly over woodland
WILDFIRE
Very weak
FRAGILE
To keep safe or rescue (someone or something) from harm or danger
TO SAVE
Antonym of fragile
STRONG
A mass of snow, ice, and rocks falling rapidly down a mountainside
AVALANCHE
Seriously at risk of extinction
ENDANGERED
Use carelessly, extravagantly, or with no purpose
TO WASTE
DROUGHT
Extreme scarcity of food.
FAMINE
A person or thing likely to cause damage or danger
THREAT
TO LEAVE ON STANDBY
PLAGUE