From the small number of impact craters on ________, planetary geologists suspect that virtually all its original surface has been covered over by younger volcanic activity.
A. Ganymede
B. Callisto
C. Venus
D. the Moon
E. Mercury
Answer: C
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Which of these processes occurs when water vapor in the atmosphere cools and condenses?
A. precipitation B. evaporation C. transpiration D. respiration
The three phases of the Cordilleran orogeny, in order from oldest to youngest, were the
____________________, ____________________, and ____________________. What will be an ideal response?
As a result of population shifts since the 1950s, what American regions now have the majority of the population of the U.S.?
A) Midwest and West B) Midwest and South C) North and South D) North and West E) South and West
To obtain a more stable configuration, atoms may share electrons in their outer energy level in ________ bonding.
A. covalent B. metallic C. ionic