er

12345
Across
  1. 1. Destroy, damage, or injure by heat or fire.
  2. 2. Fairly hard and not soft or easy to press down.
  3. 3. Gain or acquire knowledge of or skill.
  4. 5. Of the poorest quality or the lowest standard.
Down
  1. 1. A warm-blooded egg-laying vertebrate animal distinguished by the possession of feathers, wings, a beak, and typically by being able to fly.
  2. 2. Coming before all others in time or order.
  3. 4. The planet on which we live; the world.