Geography, asked by lalremkimi80, 1 day ago

the velocity of primary wave is 6.1 km per second in the upper crust and 6.9 km per second in the lower crust it means that?
1 the upper crust is less dense than the lower crust
2 there is other factor that can change the velocity
3 none of these two​

Answers

Answered by raahilo
0

3] none of these two​

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