How did people from outside the region cross the mountains along the northern borders of South Asia?
A. By rivers such as the Ganges River
B. Through gorges like the Khyber Pass
C. By crossing shorter mountains like the Western Ghats
D. By crossing the Thar Desert

Question

How did people from outside the region cross the mountains along the northern borders of South Asia?
  A. By rivers such as the Ganges River 	
  B. Through gorges like the Khyber Pass 	
  C. By crossing shorter mountains like the Western Ghats 	
  D. By crossing the Thar Desert

anonymous · Answer

A. They came by rivers such as the Ganges River.