2. (n.) [U] - a process of making water, air, soil, etc. dirty. - POLLUTION
3. (n.) [U; C] - when sb or sth becomes impossible to see or find.-DISAPPEARANCE
4. (n) [C] - a person who carefully studies the topic to find new facts or information. - RESEARCHER
5. (n.) [U] - the process of something being made worse. - DEGRADATION
6. (n.) [U] - the state of being safe and protected from danger. - SAFETY
7. (n.) [C; U] - a rise in the number.-INCREASE
8. (n.) [U] - physical harm to something that makes it less attractive or useful. - DAMAGE
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1 Throwing Mum and Dad a surprise party for their anniversary this year is really a bright idea!
2 Why don’t you take part in the cooking contest? I’m sure you’ll be the winner!
3 If you see a spider, make sure you don’t kill it; I’ve heard it’s bad luck.
4 We always sing Christmas carols during the holidays, as it is a strong tradition in my family.
5 Over the years, this organisation has raised a lot of money for different local charities.
6 The night sky burst with colour when the magnificent fireworks display began.
7 Henry really enjoyed the opportunity to experience return as a knight at England’s Medieval Festival last month.
8 It’s amazing how the town residents have transformed the local square into an open-air theatre for next week’s music festival.
9 The children were thrilled to see Disney floats at this year’s colourful street parade.
10 Take a spare change of warm clothes with you on your camping trip; I’ve heard it gets quite cold in the mountains at night.