1.

Which of the following is/are direct source(s) of information about the interior of the Earth? 1. Earthquake wave 2. Volcano 3. Gravitational force 4. Earth magnetism Select the correct answer using the codes given below

A. 1 and 2
B. Only 2
C. 3 and 4
D. All of these
Answer» B. Only 2


Discussion

No Comment Found