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Which of the following sentences demonstrates proper subject-verb agreement?

A. Physics is a difficult subject to learn

B. News travel fast

C. The study of various sciences are compelling

D. Measles usually spread through respiratory fluid

Answer Explanation:

A. Physics is a difficult subject to learn.

In this sentence, "Physics" (singular) is paired with the singular verb "is." This is a correct subject-verb agreement.

The other options have issues with subject-verb agreement:

B. "News travel fast" should be "News travels fast."

C. "The study of various sciences are compelling" should be "The study of various sciences is compelling."

D. "Measles usually spread through respiratory fluid" should be "Measles usually spreads through respiratory fluid."

Therefore, the Correct Answer is A.

Q #1: Which of the following prefixes attached to a root word would be part of a sequence of events?

A. Ati-

B. Co-

C. Sub

D. Post-

Answer Explanation

The prefix "Post-" signifies something that comes after or follows in a sequence.
Q #2: Which of the following is the correct definition for the prefix "inter" as used in words like "interstate" or "international?

A. One who is the subject

B. A thing or process

C. Government rule

D. Between or among

Answer Explanation

The prefix "inter-" implies involvement or connection between different entities.
Q #3: Which of the following sentences requires a citation?

A. Any exposed semi susceptible to sunburn

B. Prolonged sun exposure can result in a burn

C. Some sunscreens have an SPF of 35 or higher.

D. One in five Americans will develop skin cancer by the age of 70.

Answer Explanation

Presents a factual claim about a significant health risk and should be supported by a credible source.

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