A. precious gems
have a good day
They cut down trees to make room for fields.
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