Assertion: dry quicksand | /r/HasProperty | blown into the air
Facets:
Source sentences:
text: In the lab, it is created by causing air to flow through the sand, but it can theoretically be caused by the gradual buildup of very fine sand after it has been blown into the air.
text: In nature, dry quicksands may evolve from the sedimentation of very fine sand after it has been blown into the air and, if large enough, might be a threat to humans.