Match the words to their synonyms

Варианты ответов и условие задания

1. amount of food
2. food intake
3. types
4. species
5. fall down
6. collapse
7. maintain
8. sustain
9. shrinking
10. receding
11. exactly
12. precisely
13. disturbing speeds
14. alarming rates
15. gone up
16. increased
17. disastrous
18. cataclysmic
19. unclear
20. uncertain
21. consequences
22. repercussions
23. states
24. conditions
25. period when food is absent
26. summer fast
27. discharge
28. emission
29. lessening
30. reduction
31. became less
32. decreased
33. places where a wild animal gives birth
34. maternity dens