Did it rain last night?

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Across
  1. 1. A light material used to make many products like bottles and bags.
  2. 4. Water that comes from rain.
  3. 10. Not clean; covered with dirt.
  4. 11. Old people; people who are advanced in age.
  5. 13. Small pieces of trash left on the ground in public places.
  6. 14. A large amount of water covering land that is usually dry.
  7. 16. Something that causes difficulty or needs to be solved.
  8. 17. A container for putting trash.
  9. 18. A natural stream of water that flows to the sea.
Down
  1. 2. Waste material or things that are thrown away.
  2. 3. Blocked so that water or air cannot pass through.
  3. 5. Not far away; close to a place.
  4. 6. To use something again by processing it into a new product.
  5. 7. A person whose job is to put out fires and rescue people.
  6. 8. A person who serves in the army.
  7. 9. A narrow channel along the edge of a roof or road to carry water away.
  8. 10. A pipe or channel that carries away water.
  9. 12. A strong, flexible material used to make things like tires and gloves.
  10. 15. The process of something slowly breaking down or rotting.
  11. 18. To save someone from danger.