Airborne pyroclasts have their finest grains settle down from the atmosphere first,closest to the volcano,followed by progressively coarser material at greater distances away.

Question

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Airborne pyroclasts settle from the atmosphere with the coarsest material falling out first, closest to the volcano, and progressively finer material settling at greater distances away due to their lighter weight and ability to be carried further by wind.

Airborne Pyroclasts Have Their Finest Grains Settle Down from the Atmosphere