Question

look at the text below. if there is an error with subject - verb agreement, select the incorrect verb and type it correctly. otherwise, submit the text without making any changes. when it comes to exercise, some are better than none at all. according to researchers at iowa state university, just five to ten minutes of running once or twice a week provides significant health benefits.

Explanation:

First, we analyze the subject - verb agreement in each sentence. In the first sentence, the subject "some" (referring to some exercise) and the verb "are" agree. In the second sentence, the subject is "just five to ten minutes of running once or twice a week". When we consider the subject - verb agreement for phrases indicating a quantity of time, the verb should agree with the concept of the quantity as a single unit. Here, "five to ten minutes of running once or twice a week" is considered a single amount of exercise, so the verb "provides" is correct as it agrees with the singular subject (the amount of running time is treated as a single entity for the purpose of providing benefits). So there is no error in subject - verb agreement.

Answer:

When it comes to exercise, some are better than none at all. According to researchers at Iowa State University, just five to ten minutes of running once or twice a week provides significant health benefits.