Question

1. What causes a continental shield to form?
A. the formation of mountains and their subsequent erosion at convergent plate boundaries
B. the subduction of oceanic lithosphere under continental lithosphere
C. the partial melting of magma under a continent
D. the collision between two plates of continental crust
2. The stable platform has developed from a series of _____.
A. mountain belt erosion followed by isostatic adjustment
B. volcanic eruptions that deposit thick layers of lava followed by periods of metamorphism
C. rising and falling sea levels and their accompanying cycles o

Answer 1

@paki

Answer 2

1. i think is D
2. B

Answer 3

for first i will say "C"...and second "B"...

Answer 4

thanks