things related to life

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Across
  1. 3. heating keep the air warm
  2. 4. cars, buses,motorbikes
  3. 6. conditioning keep the air cool
  4. 8. do difficult maths
  5. 10. access If you surf online you will need it
Down
  1. 1. a wide road with fast cars
  2. 2. lights a set of yellow, red and green lights
  3. 5. you can make your hair dry
  4. 7. you can walk on it
  5. 9. it can take you up to higher buildings