Question

determining deposition by sediment size
arrange from first to last the sediment particles based on the order they would be deposited as a river loses velocity.
soil particles
large rocks
small pebbles
medium rocks

Explanation:

When a river loses velocity, larger and heavier sediment particles are deposited first because they require more energy to be transported. As velocity decreases further, smaller particles are deposited later. So the order from first (heaviest/largest) to last (lightest/smallest) is large rocks (heaviest, largest), then medium rocks, then small pebbles, and finally soil particles (lightest, smallest).

Answer:

First: large rocks, Second: medium rocks, Third: small pebbles, Fourth: soil particles