Final answer:
When sand, silt, and clay are mixed together and allowed to settle, the resulting sediment will resemble a tropical reef or bank.
Step-by-step explanation:
The resulting sediment will most closely resemble that of a tropical reef or bank. When sand, silt, and clay are mixed together and then allowed to settle, the larger and heavier sand particles will settle first, followed by the smaller and lighter silt particles, and finally the very fine clay particles. This process mimics the sedimentation pattern found in tropical reefs or banks, where different types of sediments accumulate in layers due to the varying water currents.