Which physical feature has often served as a barrier for trade and travel in South Asia? A The Himalayas B The Ganges River

C The Indian Ocean

B The Deccan Plateau

That would be A

Explanation:

For many reasons the himalayas were huge and hard to get across and so it served as a natural barrier between china and northern asia

the triple alliance. germany and austria-hungary were already allies by 1879 when, worried about a threat from russia, they formed the dual alliance. italy joined the group in 1882. there was a concern about a possible attack from france and the alliance needed powerful friends to defend it.

6 units. ab and lo are congruent sides, and if ab= 6 units, then lo would be the same.