The choices describe four hypothetical planets. Which one would you expect to have the most features of erosion? (Assume the planets orbit a star just like the Sun and that they are all the same age as the planets in our solar system.)
A) Size: same as Venus
Distance from Sun: same as Mars
Rotation rate: once every 25 hours
B) Size: same as the Moon
Distance from Sun: same as Mars
Rotation rate: once every 10 days
C) Size: same as Mars
Distance from Sun: same as Earth
Rotation rate: once every 18 hours
D) Size: twice as big as Earth
Distance from Sun: same as Mercury
Rotation rate: once every 6 months
A) Size: same as Venus
Distance from Sun: same as Mars
Rotation rate: once every 25 hours
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Is naturally derived uranium able to start a chain reaction?
A. Yes. B. No.
A certain fuse "blows" if the current in it exceeds 1.0 A, at which instant the fuse melts with a current density of 620 A/cm2. What is the diameter of the wire in the fuse?
A) 0.45 mm B) 0.63 mm C) 0.68 mm D) 0.91 mm
Which expands more when the temperature is increased? Equal volumes of
A) iron. B) wood. C) ice water. D) helium. E) all expand the same
Which of the following is not a type of plate
interaction zone associated with the theory of plate tectonics? a) oceanic-oceanic b) oceanic-continental c) continental-continental d) continental-deep ridge •