20 Crosswords

3. - What term describes an optical illusion caused by atmospheric conditions?
4. - In Greek mythology, what is the name of the goddess of retribution and revenge?
7. - What term describes a structure on a roof that allows smoke or gases to escape from a fireplace or furnace?
10. - What term describes a fortress or stronghold, often used for military defense?
11. - What term describes a deep and seemingly bottomless chasm or void?
12. - What term describes something mysterious or difficult to understand?
15. - What is the name of the primate that is the closest living relative to humans?
17. - What term describes the final battle between good and evil in the Bible?
18. - What term describes a sign or warning of something to come?
19. - What term describes the partial or total obscuring of one celestial body by another?
20. - What term is used to express excitement or triumph upon discovering or solving something?

1. - What term describes a special anniversary or celebration, often with a religious or historical significance?
2. - What term describes the highest point or peak of something?
5. - What term describes the interaction of multiple elements that produces a combined effect greater than the sum of their separate effects?
6. - What term describes a swirling mass of water or air, often with a center of low pressure?
8. - What term describes an optical illusion caused by atmospheric conditions?
9. - What term describes a long and eventful journey or adventure?
13. - What term describes a collection of wild animals, often kept for display?
14. - What term describes a statement or situation that contradicts itself or defies logic?
16. - What term describes someone who thinks and acts independently, often in defiance of convention?