Lanthanum is an example of a ___________ metal.

Fill in the blank(s) with the appropriate word(s).


rare-earth

Environmental & Atmospheric Sciences

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True or False: Earthquake body wave records allow scientists to construct an image of Earth's interior

Indicate whether this statement is true or false.

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Which of these is most important for splitting the Sun's light into its separate colors?

A) diffraction B) interference C) internal reflection D) reflection E) refraction

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Describe the distinction between a primary pollutant and a secondary pollutant. Give an example of a primary pollutant and an example of a secondary pollutant. Explain the source(s) and effect(s) of each of these pollutants, and describe recent U.S

trends in atmospheric concentrations of each.

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This figure depicts what type of boundary?

A. oceanic divergent boundary B. transform boundary C. ocean-ocean convergent boundary D. continental collision E. ocean-continent convergent boundary

Environmental & Atmospheric Sciences