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Question
Which one of the following is a direct source of information about the interior of the earth?
Options
Earthquake waves
Volcanoes
Gravitational force
Earth magnetism
MCQ
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Solution
Volcanoes
Explanation:
Volcanoes are a direct source because they bring molten material (magma) from inside the Earth to the surface, which can be studied directly.
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Sources of Information About the Interior
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Chapter 3: Interior of the Earth - Exercises [Page 29]
