Take the following as truth: The fact, according to geologists, is that the Kathmandu Valley was indeed once a lake, though the valley's waters now drain through the narrow cleft of Chobar Gorge, which was most likely created by a large earthquake.)
Then the following statement: "Geologists believe that the Kathmandu Valley was a lake at some point in its history. " is true, false, or inconclusive?
Answer: True