Crossword 2- Riddles

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Across
  1. 2. What's always found on the ground but never gets dirty?
  2. 3. What can fill a room but takes up no space?
  3. 4. What cools you down but also hypes you up
Down
  1. 1. what has a neck but no head
  2. 2. What is so fragile that saying its name breaks it?
  3. 4. what holds something while being held/hung