<span>C) ships could then take advantage of the currents to speed up travel </span>
Answer:
1000 kilometers
Explanation:
The Khyber Pass: The chief mountain pass between Pakistan and Afghanistan, west of Peshawar. 33 miles (53 kilometers) long; 6,825 feet (2,080 meters) high.
The Bolan Pass: The pass is an 89-km (55-mi) stretch of the Bolan River valley from Rindli in the south to Darwāza near Kolpur in the north. It is made up of a number of narrow gorges and stretches.
The largest canyons and deepest valleys were created by moving water.
