1. Which attribute does not distinguish people?
2. The average world sex ratio is:
3. The lowest sex ratio is found in:
4. Favourable sex ratio is found in how many countries.
5. In how many countries, unfavourable sex ratio is found?
6. In European countries, a deficit of males is due to:
7. In which continent, low sex ratio is found:
8. The aging population has aged more than:
9. Expanding population Pyranrd Shows.
10. Which type of age-sex pyramid is of Australia?