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Across
  1. 2. A large, undeveloped, humid forest, especially in a tropical region, that is home to many wild plants and animals; a tropical rainforest.
  2. 5. Worthy of being remarked or noted; notable
  3. 8. A shallow portion of an otherwise deep body of water.
  4. 9. One who drives something, in any sense of the verb to drive.
Down
  1. 1. A room, often in a school, where classes take place
  2. 2. A task.
  3. 3. A unary operation on logical values that changes true to false, and false to true.
  4. 4. A relatively long, wide and thin piece of any material, usually wood or similar, often for use in construction or furniture-making.
  5. 6. A utensil or a tool designed for cutting, consisting of a flat piece of hard material, usually steel or other metal (the blade), usually sharpened on one edge, attached to a handle. The blade may be pointed for piercing.
  6. 7. A coarse mediaeval coat of defence, especially one made of leather.