What is the speed of primary seismic waves as they travel through the Earth's crust?
A8 km/s
B9 km/s
C7 km/s
D6 km/s
A8 km/s
B9 km/s
C7 km/s
D6 km/s
Related Questions:
Which of the following statements are true about the Earth’s crust?
Its thickness is uniform throughout.
It is thickest under mountain ranges.
The average density of oceanic crust is greater than continental crust.