A condition in which sunlight causes hydrocarbons and nitrogen oxides to react in the atmosphere produces

A) acid deposition.
B) chlorofluorocarbon.
C) greenhouse effect.
D) photochemical smog.
E) ammonia.


Answer: D

Environmental & Atmospheric Sciences

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A. where two plates are colliding. B. not a plate boundary. C. a subduction zone. D. a convergent boundary. E. a divergent boundary.

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The movement of air over a mountain range, causing it cool (and possibly rain) as it gains elevation is known as

A) convergence B) climatic C) orographic D) convection E) dynamic

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The length of daylight gets progressively shorter going south from the equator on:

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What two chemical elements are most abundant in the deep interior of the earth?

A) magnesium and oxygen B) iron and magnesium C) hydrogen and helium D) silicon and oxygen

Environmental & Atmospheric Sciences