| http://www.w3.org/ns/prov#value | - Dust caught up by the wind from the earth's surface or emitted from volcanoes is there in abundance; vegetable fibers, pollen, spores, bacteria, and other microscopic organisms permeate the atmosphere; fires emit considerable quantities of ash, and smoke in the form of particles of carbon, tarry matter, and other materials; the evaporation of the spray of the ocean leaves tiny particles of salt be
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