Puzzle 151

1234567891011121314151617181920
Across
  1. 1. Electromagnetic radiation visible to the human eye
  2. 3. A country in South Asia bordered by India and Myanmar
  3. 6. A flat paper container for a letter
  4. 8. A rope with a loop used for catching livestock
  5. 9. A wild carnivorous mammal related to the dog
  6. 11. An aggressive action or assault
  7. 12. A country in Eastern Europe
  8. 15. The daily disappearance of the sun below the horizon
  9. 16. To cease movement or action
  10. 19. A confusing or difficult problem or question
Down
  1. 2. A large mass of ice slowly moving over land
  2. 4. A country in the South Caucasus region of Eurasia
  3. 5. The day or period before an event, or a biblical figure
  4. 7. A sentimental longing for the past
  5. 10. A structure with steps used for climbing up or down
  6. 13. A public bathroom or toilet
  7. 14. A country in Western Asia
  8. 17. Bubbles formed on or in liquid
  9. 18. A contact sport played with an oval ball
  10. 20. A biblical figure, wife of Isaac