Rift valleys are formed by the Earth's movements. The Earth's surface is made up of huge
pieces of land. They are called
plates. These plates move
around very slowly. Earth's
continents sit on top of the
plates and move with them. Rift
valleys form when the edge of
one plate slides under the edge
of another
Which answer choice BEST describes the
structure of the paragraph?
А
problem and solution
B
cause and effect
С
question and answer D
compare and contract