About: http://webisa.webdatacommons.org/358547453

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Particle size, density, shape and external factors such as air density, viscosity, and the local gravitational field strength appreciably affect the fall velocity of particles.
http://www.w3.org/ns/prov#wasQuotedFrom	usda.gov