The law of reflection holds for
A. light.
B. sound.
C. both of these
D. none of these
Answer: C
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Which of the following is not a typical environment in which a sedimentary rock forms?
A) Beside glaciers B) River channels C) Heating next to a magma D) Deep seafloor E) Shoreline of a lake
The rock that makes up ocean basins has a density of ________ and is made of ________
A) 1.9 g/cm3; sandstone B) 4.5 g/cm3; gneiss C) 3.0 g/cm3; basalt D) 2.7 g/cm3; granite
Which of the following is true of liquid ethers?
A) They are both volatile and highly flammable. B) They are neither volatile nor highly flammable. C) They are volatile, but are not flammable. D) They are flammable, but are not volatile.
Compared to places at lower elevations, highland climates are usually cooler and ________
A) less changeable B) sunny C) wetter D) dryer E) none of the above