Falak lists the four events involved in the formation of sinkholes.
w - acidic rainwate...
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Falak lists the four events involved in the formation of sinkholes.
w - acidic rainwater dissolves the limestone bedrock.
x - large cavities form in the bedrock.
y - natural holes and cracks become bigger.
z - the ceiling collapses due to the weight of sediment.
which list shows the correct order of these events in the formation of sink holes?
a) w, x, y, z
b) w, y, x, z
c) w, z, y, x
d) w, z, x, y
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