If, instead of carbon-14, uranium-238 was used and 4000 atoms of uranium were left over, how old would the rock be? (I have more questions coming!)

yes i have all the correct answers

1. c 6. b. 11. c

2. a 7. d. 12. d

3. c 8. b. 13. c

4. d 9. c. 14. d

5. c 10. d. 15. a

16. d. 21. a

17. d.

18. a. 22-30 you must do on

19. d. your own

20. d.

i think its c. amphipod

hello

answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this