Which of the Following Is the Best Indicator That a Volcano

question 135

Multiple Choice

Which of the following is the best indicator that a volcano might be very dangerous?

• A) gentle slopes that signify fast-flowing lavas
• B) rock analyses that indicate a low content of silica
• C) a volcano that contains andesite and welded tuffs
• D) ages that indicate the volcano last erupted 10 million years ago

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