This home system illustrates the use of

A) ecothermal energy.
B) biomass fuels.
C) geothermal energy.
D) hydroelectric energy.


C

Environmental & Atmospheric Sciences

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What is the most common way in which sinkholes form?

A. the roof of a cave collapses B. a rising dome of salt finally reaches the surface C. a small explosion of methane gas from coal beds D. a small explosion of CO2 gas from dissolving limestone

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The photoelectric effect supports the

A. particle nature of light. B. wave nature of light. C. both of these for high frequencies. D. none of the above

Environmental & Atmospheric Sciences

Which of the following is a principle to interpret relative ages?

a) The youngest rock is on the bottom b) a geologic feature is older than any rock or feature it crosscuts c) a younger rock can include pieces of an older rock d) an older magma can bake or metamorphose younger rocks

Environmental & Atmospheric Sciences

How does the geology (dip of rock layers or joints) on a slope affect slope stability? What will be an ideal response?

Environmental & Atmospheric Sciences