Перепишите предложения, заполнив пропуски подходящим по смыслу словом: 1. It’s important to maintain proper operation of the …. .
a) reactor; b) nuclear power station; c) engine; d) electricity.
2. Radioactive … are harmful to health.
a) chemicals; b) particles; c) substances; d) dust.
3. Nuclear weapons continue to pose a … .
a) danger; b) catastrophe; c) threat; d) problem.
4. The rise in sea levels has been predicted as a … of global warming.
a) consequence; b) result; c) cause; d) reason.
5. The 1987 hurricane was the worst natural … to hit England for decades.
a) accident; b) catastrophe; c) tragedy; d) disaster.

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