Happy New Year

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Across
  1. 3. essential and greatly needed
  2. 4. provide
  3. 5. it is a mountain from which hot melted rock, gas, steam, and ash from inside the earth sometimes burst.
  4. 6. an important problem or a hot topic
  5. 7. permit
Down
  1. 1. it is a large, dangerous, or unusual animal
  2. 2. This is your answer