1. A group of islands
2. The weather conditions prevailing in an area
3. A machine that converts wind energy into rotational energy
4. The daily disappearance of the sun below the horizon
5. A domesticated quadrupedal mammal
6. The second-largest of the world's oceans
7. A system of communication spoken by a specific community
8. A black-and-white seabird with a brightly colored beak
9. The art or practice of applying paint to a surface
10. The sport or activity of using boats with sails
11. The activity of catching fish for food or sport
12. The customs, arts, social institutions, and achievements of a particular nation
13. A small community or group of houses in a rural area
14. A member of the seafaring people from the late eighth to early 11th century
15. A large marine mammal
16. A piece of cloth used as a symbol of a country or group
17. Relating to the northern European countries
18. A team sport played with a round ball
19. An opening in the Earth's crust that allows hot lava, ash, and gases to escape
20. A sheltered area of water where ships can anchor safely