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3. What is NOT true about the majority of sinkholes?
A. They are often observed in areas where there are limestones.
B. The heaviness of soil soaked in water causes them to form.
C. They are formed underneath volcanic debris.
D. A cavity is part of their forming process.
4. What can be inferred from the passage about the new sinkhole in Guatemala?
A. It had natural causes.
B. A limestone bedrock was found at the site of the sinkhole
C. The ground collapsed because the volcanic debris became loose.
D. It is likely to be rooted in a man-made problem.
5. Which of the following best describes the writing style of the text?
A. comparative and explanatory
B. descriptive and explanatory
C. persuasive and descriptive
D. narrative and explanatory
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