Question

quiz instructions
for each of the ten sentences, you must read the directions carefully. for some question types you must identify the correct subject and verb for each sentence. type them in the answer box as they are in the sentence. for other questions it is accompanied with a section of a passage. the underlined portion within the passage corresponds to the multiple - choice options provided. select the choice that best represents the subject and verb agreeing in number. be aware some underlined portions may be correct, therefore select no change. read carefully before submitting your answer.
the first box is for the subject.
the second box is for the verb.
question 5
2 pts
directions: the underlined portion within the passage below corresponds to the multiple choice options provided. select the choice that best represents the subject and verb agreeing in number. be aware the underlined portion may be correct, therefore select no change.
this deformation results in subtle variations in density that both causes uneven heat flow and limits the size of the droplets that can be tested.
no change
cause uneven heat flow and limits
has caused uneven heat flow and has limited
cause uneven heat flow and limit

Explanation:

The subject "variations" is plural. The verb should agree in number. "Causes" is singular, while "cause" is plural. The correct form should be plural to match "variations". Also, parallelism requires that the second verb "limit" should be in the base - form to match "cause" as they are connected by "and".

Answer:

cause uneven heat flow and limit