Which water access option is described as having no sand at the bottom to avoid sand colic?

• A. Trough
• B. Bucket
• C. Stream
• D. Pond

Answer: (C)

A stream is the water source that tends to have a flowing, clearer bottom with less fine sand than still-water containers. The moving water keeps sediment from accumulating in one spot, so the bottom is often rocky or gravely rather than sandy. Horses ingest sand mainly when they drink from still water where sand has settled, such as in troughs, buckets, or ponds that can collect sediment. So, choosing a stream as a water access minimizes the chance of swallowing sand and helps avoid sand colic. (Be aware streams carry other risks like currents and cleanliness, but for sand avoidance this option is the best.)