Ozone located in the troposphere is

a. considered a pollutant
b. beneficial to living organisms
c. higher in concentration than ozone in the stratosphere
d. all of the above

a.

considered a pollutant

Explanation:

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.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.