A hurricane is a ______________________wind or storm. (violence)
It was a _____________________disaster. (terror)
The _________________made by the fire was awful. (destroy)
It is __________________to be near the crater of volcano. (danger)
______________disasters can damage houses and kill people. (nature)
Emergency _______________do their best to save people. (work)
Sometimes situations are very _________________ to solve.(difficulty)
The ocean is polluted with __________ waste. (chemistry)
We should solve ________________problems. (environment)
Air ______________is very dangerous for people. (pollute)
The _______________of scientists are alarming. (predict)
The earth has given us _____________ for thousands of years. (support)
The hurricane did a lot of _______________ to the house. (damage)
What are the most serious __________________problems now? (ecology)