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Which of the Following Best Defines Pathogen

question 9

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Which of the following best defines pathogen?


Definitions:

Vesicular Basalt

A basalt that contains vesicles.

Basalt

A fine-grained, dark volcanic rock created through the quick cooling of basaltic lava when it is exposed at, or just beneath, the earth's surface.

Felsic

Refers to igneous rocks that are rich in lighter elements like silicon, oxygen, aluminum, sodium, and potassium.

Pyroclastic Flow

A swiftly flowing stream of heated gas and volcanic substances that descends a volcano's slope when there's a violent eruption.

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