Intrusive igneous rock formations that cut more or less vertically across older formations are said to be ______________
a. recordant
b. discordant
c. concordant
d. precordant
b
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A 2 kg ball is floating in water. The volume displaced by the ball is
A. 0.005 
B. 0.004
C. 0.003
D. 0.002
E. 0.001
In age, Population I stars are typically much ________ than those of Population II
Fill in the blank(s) with correct word
The Andromeda Galaxy (M31) is what type?
a. Spiral b. Irregular c. Elliptical d. Regular spiral
What is the photoelectric effect?
a. The mechanism by which a camera works. b. The effect seen by bombarding a metal surface with an electron beam. c. The production of light by an electric discharge through a gas. d. The emission of electrons from a clean metal surface when light shines on the surface. e. The fact that electrons bounce off any surface when light shines on it.