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2. an accident in which a vehicle hits sth, for example another vehicle, usually causing damage and often injuring or killing the passengers
5. to take goods, letters, etc. to the person or people they have been sent to; to take sb somewhere
7. to move easily over a smooth or wet surface; to make sth move in this way
9. the ability to make sensible decisions and give good advice because of the experience and knowledge that you have
11. to damage sth so badly that it no longer exists, works, etc.
13. an unexpected event, such as a serious accident, a flood or a fire, that kills a lot of people or causes a lot of damage
15. to hit sb/sth quickly and lightly
16. the size or measurement of sth from one end to the other
17. when a volcano erupts or burning rocks, smoke, etc. erupt or are erupted , the burning rocks, etc. are thrown out from the volcano

1. to break without dividing into separate parts
3. a short statement that gives only the main points of sth, not the details
4. a form of energy from charged elementary particles , usually supplied as electric current through cables, wires, etc. for lighting, heating, driving machines, etc.
6. to harm or spoil sth/sb
7. to continue to live or exist
8. help that is given to a person
10. the size of an earthquake
12. the physical or mental energy that you need to do sth; sth that takes a lot of energy
14. the fact of having a place to live or stay, considered as a basic human need
18. to join people, things, parts of a country, etc. together so that they form a single unit