2. population
3. resources
4. ancestors
5. migration
6. genetics
hope this helps
Answer:
maybe it's because you added no context, let me check.
Explanation:
Only one?
If one then cheerful
If two then gloomy and cheerful
Something along the lines of seeing the jews treated as pigs on a farm if I remember correctly, I believe it is a reference to George Orwell's "Animal Farm".
It may be slightly off my memory is a bit foggy, but it's definitely the right concept I'm sure.