UNIT 4

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Across
  1. 2. an arch (= curved shape) of different colours seen in the sky when rain is falling and the sun is shining:
  2. 4. worried and nervous:
  3. 5. the season of heavy rain during the summer in hot Asian countries:
  4. 8. made by people, often as a copy of something natural:
  5. 11. covered in water or another liquid:
  6. 12. sending out or reflecting light:
  7. 14. a long period when there is little or no rain:
  8. 16. rainstorm:
  9. 17. any of various units of measurement, especially of temperature or angles, usually shown by the symbol ° written after a number:
  10. 19. a tube inside which liquid or gas flows from one place to another:
Down
  1. 1. a large amount of ice, snow, and rock falling quickly down the side of a mountain:
  2. 3. a severe snow storm with strong winds:
  3. 6. a short period of rain:
  4. 7. a large amount of water covering an area that is usually dry:
  5. 9. with clouds:
  6. 10. an extreme weather condition with very strong wind, heavy rain, and often thunder and lightning:
  7. 13. to feel pain in a part of your body, or to injure someone or cause them pain:
  8. 15. a very strong wind:
  9. 18. the direction from which the sun rises in the morning, opposite to the west, or the part of an area or country that is in this direction:
  10. 20. to say that an event or action will happen in the future, especially as a result of knowledge or experience: