Answer:
542.5 km
Explanation:
average thickness of granitic continental crust = 35 km
Average density of crust ( from section C1 ) (pc) = 3.3 g/cm^3
Average density of mantle (Pd) = 3.1 g/cm^3
applying the concept of Isostay
attached below is the missing part of the question and solution
Whitney Smith was credited for the making of the "Global Arrowhead".
Hope this Helps!
Hawaii,and Italy are where the 2 most active volcanos are