What geologic feature affected the accuracy of John Pratt's survey results?
A) the Nile River valley
B) the Grand Canyon (Colorado portion)
C) the Himalayan mountains
D) Ayer's Rock in Australia

Question

Quizplus · Accepted Answer

The Himalayan mountains affected the accuracy of John Pratt's survey results due to their massive gravitational pull, which was not accounted for in his initial calculations regarding the shape of the Earth.

What Geologic Feature Affected the Accuracy of John Pratt's Survey