The major bombardment period that shaped much of the surface of the moon ended ________.
A) 5.0 billion years ago
B) 3.8 billion years ago
C) 2.2 billion years ago
D) 767 million years ago
Correct Answer:
Verified
Q12: Which of the following processes created the
Q13: Only a few thousand impact craters have
Q14: The _ explains the formation of the
Q15: _ is the speed required for an
Q16: What is a planetesimal?
A)A rotating cloud of
Q18: Today, erosion on the moon is dominated
Q19: How many planets are in our solar
Q20: What substance makes up the core of
Q21: _ is the largest known asteroid.
A)Pluto
B)Eris
C)Ceres
D)Andromeda
Q22: What is the definition of cryovolcanism?
A)Pyroclastic volcanism
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