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
A pollitical map focuses on boundaries between entities like countries states of counties they are generally brigther colors to easly distinguish the boundaries a phisical maps focuses on the geography of the area and will often have shaded relief to show the mountains and valleys.
<span>D) provide electrical power to an poor and rural regions of the U.S.</span>