On one dive to the Titanic, Ballard used a mechanical arm to /

Debris Trails

With just 12 days left over in his mission, Ballard began searching for the Titanic, using this information to track down the ocean liner. He speculated that the ship had broken in half and left a debris trail as it sank. "That's what saved our butts," Ballard said.

Explanation:

7. which was not an important advance made by the maya:

-deviced and accurate map of the world.

8. what was justinian code:

-a single, consistent set of laws for the byzantine empire.

9. which describes what theodora achieved as justinian´s most trusted adviser:

-getting laws passed to give married women more rights and to protect divorced women.

10. what caused the christian church to divide into two branches- the eastern orthodox church and the catholic church:                                             -differences in language, liturgy, and views on religious icons.

11. what was a result of the work done by the monks cyril and methodius:       - orthodox christianity spread to slavic cultures.

12. which is true about byzantine culture:

-it was a blend of greco-roman and persian culture.

13. which was not a major accomplishment of byzantine culture:

-the reconstruction of moscow

14. which group invaded the slavic homeland beginning in the ninth century:

-varangians

15. what did vladimir, prince of kiev, do in 988 to unify his people:       - he converted to orthodox christianity

16. what is the name of the book in which muhammad ´s words and teaching were collected:

-quran

17. what is the hajj:

-the pilgrimage to mecca that all muslims must undertake if possible

18. which accurately describes islamic belief:

-muhammad is god´s only prophet.

19. what happened to islam after the death of muhammad:

-it was practiced by only few people in small parts of the world

20. which region shows the extent of islamic territory 100 years after muhhamed´s death:

-egypt, mesopotamia, persia.(b)

21. which led to the division between sunni and shia following the death of muhammed:

-conflict over who should be the caliph

22. the muslims achieved many spectacular advances, which was not one of them:

-they created the justinian´s code.