All the answers contain the letters 'Au', 'Ag' or 'Cu' within the word.
-1. A person who is extremely poor? 6 letters
-2. Country whose German name is 'Osterreich'? 7
-3. A wine bottle holding the equivalent of two normal bottles? 6
-4. A region containing no matter, free space? 6
-5. All the animal life of a given place? 5
-6. Any of numerous insects of warm and tropical regions which travels in vast swarms, stripping large areas of vegetation? 6
-7. Acute physical or mental pain, anguish? 5
-8. The adult male of a red deer? 4
9. Having well-developed muscles, brawny? 8
10. A member of a group professing any religion other than Christianity, Judaism or Islam? 5