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

Physics & Space Science

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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

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In age, Population I stars are typically much ________ than those of Population II

Fill in the blank(s) with correct word

Physics & Space Science

The Andromeda Galaxy (M31) is what type?

a. Spiral b. Irregular c. Elliptical d. Regular spiral

Physics & Space Science

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.

Physics & Space Science