Between 50 and 100 km
the earths crust is 25 miles beneath the continents and 6.5 miles beneath the ocean
half of earths layer
the earths continents are the same ..
300 km
Continents drift on top of the upper mantle. The core is much further down.
410km
none of your business
No the continents are.
continents
the earths plates shifted....
About 2100 km.
no before humans appeared the continents were all smooshed together