Animals in danger, Keeping animals in zoos

3. where something starts 4. the way in which someone or something does things 6. happening often again and again 10. to make someone certain of something 11. cannot be seen 12. exactly 15. something that cannot be cut into pieces 16. a thick liquid that is served as a part of a meal 17. working well without wasting time, money, or energy 19. describes something which is able to be used or can easily be bought or found

1. to try to make better 2. the state of not being liked or looked up to by anyone 5. the use of a person, animal or thing for your own purposes 7. amazing, cannot be believed 8. making you feel slightly angry 9. how well, badly or impressively something has been done 13. having a fault 14. the feeling of being bored 18. walk with strong footsteps