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When using the EIA test for HIV screening, BOTH false negative and false positive results are possible.
Caldera
A vast volcanic hollow created by a significant explosion that results in the collapse of the volcano's opening.
Pyroclastic Deposits
Accumulations of volcanic materials, such as ash, tephra, and lava bombs, ejected explosively from a volcano.
Volcanic Mudflows
Volcanic mudflows, also known as lahars, are fast-moving, deadly flows of mud, rocky debris, and water that originate from volcanic eruptions or the melting of snow and ice atop volcanoes.
Composite Volcano
A volcano composed of layers of hardened lava, tephra, and volcanic ash, typically having a steep profile and explosive eruptions.
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