Q. Which of the following is/are a direct source (s) of information about the interior of the earth?
1. Earthquake waves
2. Volcano
3. Gravitational force
4. Earth magnetism
Select the correct answer using the codes given below
1. Earthquake waves
2. Volcano
3. Gravitational force
4. Earth magnetism
Select the correct answer using the codes given below
✅ Correct Answer: (A)
1 and 2
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