Put in the order of how island arcs are made.
I. The subducting plate causes melting in the mantle
above it
II. Two oceanic plates converge
III. The magma finds a crack in the crust and fills a
magma chamber beneath a volcan
IV. The older denser plate subducts into a trench
a II, IV, I, III
b II, III, I, IV
C I, II, III, IV
d IV, III, II, I
