________ pollutants are chemicals or particles that are directly emitted from identifiable sources

A) Primary B) Secondary C) Tertiary D) Man-made E) Natural


Answer: A

Environmental & Atmospheric Sciences

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Silicates most commonly form ________

A) under extreme pressure B) at the surface of the earth C) from cooling molten rock D) from other silicates

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How many vibrations per second are associated with a 101-MHz radio wave?

A) less than 101,000,000 B) 101,000,000 C) more than 101,000,000

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The San Andreas Fault is a(n) ________ boundary

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

The sudden rapid movement of an unsaturated cohesive mass of regolith or bedrock is a

A) mudflow. B) creep. C) debris avalanche. D) rockfall. E) landslide.

Environmental & Atmospheric Sciences