Final answer:
Sand and gravel on a paved 2-lane road most likely collect on the right side of the lane, due to the lack of frequent vehicle tire travel in that area and the movement of the vehicles pushing debris to the edges.
Step-by-step explanation:
On a paved 2-lane road, sand and gravel are most likely to collect on the right side of the lane. This is because debris from the road and adjacent areas tends to accumulate toward the sides where vehicle tires less frequently travel. The motion of passing vehicles tends to push debris to the edges of the lanes.
In contrast, the concept of sediment deposition in a marine environment illustrates that materials like sand, silt, clay, and limestone settle in different locations based on their size and weight, with transitions between them being gradational, as shown by the zig-zag lines in the educational material provided. However, this concept of marine environment does not translate directly to the pattern of sand and gravel accumulation on roadways, where factors such as traffic patterns and wind play more direct roles.