Pasagot po ng science ko thank you
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Answer:
1. wheel and gears
2. pulleys
3. sharp objects
4. wheel and gears
5. ramps
6. ramps
7. wheels and gears
8. sharp objects
9. ramps
10. ramps
11. pulleys
12. wheel and gears
13. wheel and gears
14. wheel and gears
15. pulleys
16. biking
17. biking
18. biking
19. ramps
20. sharp objects