Olympus Mons is
A. the largest mountain on Earth.
B. one of Mars's moons.
C. a Mars observatory in Greece.
D. a volcano on Mars.
Answer: D
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Each element has its own set of characteristic absorption lines because
a. the temperature of each element can varies. b. elements can exist in different forms of matter. c. electron energy levels differ for each element. d. each element has a different mass. e. absorption lines depend upon the speed of the object.
Nearly 100% by mass of Earth's core is composed of the two elements
a. iron and nickel b. aluminum and silicon c. oxygen and aluminum d. silicon and oxygen.
Air temperature decreases with increasing altitude; this rate of cooling is called the
A) dry adiabatic lapse rate. B) a moist adiabatic rate. C) environmental lapse rate.
What is the typical thermal energy of an electron in a solid at room temperature?
A. 0.00 B. 0.0010 eV C. 0.025 eV D. 0.27 eV E. 1.0 eV