What are shatter cones?
a. funnel-shaped cones of rock with apex pointing downward, with striations radiating downward and outward
b. funnel-shaped cones of rock with apex pointing upward, with striations radiating downward and outward
c. cone-shaped depressions in and around the crater, caused by hypervelocity impact
d. vertical cracks in rocks, radiating outward from the point of impact
e. rocks that shattered at impact, leaving cone-shaped depressions where the rocks once were
ANSWER: b
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