- (Topic 2)
Which of the following is greatest?
A)
B)
C)
D)
E)
Correct Answer:
D
- (Topic 3)
One difficulty in convincing early scientists that craters fanned as a result of impacts from space is that most craters are circular. Impacts could come in at any angle, and experiments firing projectiles in the laboratory show that low-angle impacts lead to elliptical craters, not circular ones. Furthermore, while there was rarely evidence of any impacting object, there was often silicate melt around, suggesting that craters were caused by volcanic processes. The breakthrough in understanding crater origin was the recognition that the shock caused by the impacting object—not the object itself—creates a circular crater some twenty Times larger than the diameter of the impactor. The impact also generates enough heat to largely vaporize the impactor and melt the native rock.
What can be inferred from the passage about the silicate melt found around craters?
Correct Answer:
ABC
- (Topic 2)
Al. Ben. Carl, Dina. and Edna are to be seated in a row of 5 adjoining chairs, with 1 person sitting in each chair. If Dina and Edna must each be seated m the first chair in the row or the last chair in the row. in how many different seating arrangements can the 5 people be seated"1
Correct Answer:
B
- (Topic 2)
How many noncongruent triangles are there such that the length of each side of each triangle is an integer and the perimeter of each triangle is 15 ?
Correct Answer:
C
- (Topic 3)
The sound of disembodied human breathing in Miyazakrs films is at once a presence, close to the listener s ear. and a ghostly absence due to its lack of a visual _____ .
Correct Answer:
BD
