Question

act english practice 3
how do volcanoes work?
show passage
the probable explanation is a hotspot, which is a fixed point beneath the earth’s
crust where a (6) narrowly plume of magma rises into the crust and appears at
the surface as a continental volcano or a volcanic island.
select one answer
a no change
b narrowest
c narrow
d narrate
question 51/75

Explanation:

We need to choose the correct adjective to describe "plume of magma". The word should be an adjective (not an adverb like "narrowly" in option A, or a verb like "narrate" in D, or a superlative "narrowest" in B which isn't appropriate here as there's no comparison). "Narrow" is the correct adjective to describe the plume.

Answer:

C. narrow