What theory explains the formation and movement of the outer surface of the Earth?
A.
the theory of natural selection
B.
the theory of plate tectonics
C.
the theory of atmospheric layers
D.
the theory of glacier movement

The answer to the question is moraine

Your answer is d. silli hope this ! : ) i left an explanation down below if you need it: a sill forms when hot magma squeezes between layers of rock to form a hardened sheet of rock. a sill is basically a tabular sheet intrusion between old layers of sedimentary rock, volcanic beds, or in the direction of foliation inherent in metamorphic rock. the word sill means a concordant intrusive sheet.