ISEE Reading Question 238: Answer and Explanation
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Question: 238
1. A primary difference between volcanoes and other mountains is in
- A. their height
- B. their age
- C. where they are located
- D. how they are formed
Correct Answer: D
Explanation:
D is correct. As stated in the first two sentences, “Volcanoes are mountains, but they are very different from other mountains; they are not formed by folding and crumpling or by uplift and erosion. Instead, volcanoes are built by the accumulation of their own eruptive products—lava, bombs (crusted over lava blobs), ashflows, and tephra (airborne ash and dust).”