Plz tell highlighed words are prepositions or adverbs

Dear Student.

1. Preposition
2. Adverb
3. Adverb
4. Preposition
5. Adverb
6. Adverb
7. Adverb
8. Preposition
9. Preposition
10. Preposition
11. Preposition
12. Preposition
13. Preposition
14. Adverb
15. Preposition
16. Adverb
17. Preposition
18. Preposition
19. Preposition

We hope that this answer solves your query.
Regards.