It depends on which word is underlined.
If the underlined word is <em>boat, </em>then it is used as A. predicate nominative in this sentence.
A predicate nominative is a noun following a copulative/linking verb.
The linking verb in this sentence is <em>is, </em>and the noun following it is <em>boat. </em>
The claim in the passage, "Beyond Thirst: The Global Water Crisis" is this: "Left unchecked, the crisis will only worsen."
<h3>What is a Claim?</h3>
A claim is an opinion that is usually made at the introductory part of a text. In the second paragraph of the cited passage, the author claimed that there is an existing challenge with water, which left unchecked, will only worsen.
In the body of the passage, he supported this claim with proof.
Learn more about claims here:
brainly.com/question/2748145
Is that a song or something?
Yes was glut yes or I can get you to do it when y’all come back to the park