Respuesta :
The sentence that best expresses a sense of urgency in a claim is In his doctoral thesis, A Bright Tomorrow?, Dr. Smith insisted that if we do not lower carbon emissions, the earth may be inhabitable by the year 2050.
What is a Claim?
This refers to the statement or assertion that is used to talk about a thing that may be true or false.
Hence, we can see that The sentence that best expresses a sense of urgency in a claim is In his doctoral thesis, A Bright Tomorrow?, Dr. Smith insisted that if we do not lower carbon emissions, the earth may be inhabitable by the year 2050.
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https://brainly.com/question/2748145
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