Question

Which image shows the most likely path of a barrel floating down a meandering river?
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Answer 1

The image where the barrel rides along the outside (convex) of each bend — i.e., it hugs the outer bank of the meanders.

Reason: surface flow is fastest at the outside of bends (centrifugal/helical flow), so a floating object is carried along the outer curve rather than the inner (deposition) side or straight down the center.