In an earthquake, the primary waves move through
A B C D
air water soil rock
Question: In an earthquake, the primary waves move through
(A) air
(B) water
(C) soil
(D) rock

Answer: (D) rock
Answer: (B) water
Question: In an earthquake, the primary waves move through
(A) air
(B) water
(C) soil
(D) rock
Answer: (D) rock