The second stage of planetary evolution is _____.
A) cratering and giant basin formation
B) ozone layer formation
C) differentiation
D) slow surface evolution
Question 2
Which of the following is true of Venus?
A) It has polar caps of solid water.
B) It is 50 percent the size of planet Earth.
C) It is the fourth largest planet of the Solar System.
D) It has a thick cloudy atmosphere that hides its surface from view.