1. Earthquake wave |
2. Volcano |
3. Gravitational force |
4. Earth magnetism |
A) 1 and 2
B) Only 2
C) 3 and 4
D) All of these
Correct Answer: A
Solution :
Earthquake waves are propagating vibrations that carry energy from the source of the shaking outward in all directions. It is of four types:P (for primary) | S (for secondary) |
Love | Rayleigh |
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