Respuesta :
Answer:
D. Scientists are using underwater greenhouses to grow food for people all over the world.
In academic or professional settings, a formal writing tone is typical. This tone emphasizes thoroughness and directness while remaining respectful.
What makes a sentence less formal?
Formal language is distinguished by the use of standard English, more complicated sentence structures, the use of personal pronouns infrequently, and the absence of colloquial or slang terminology. In informal language, nonstandard English forms, vernacular terminology, and often shorter sentence patterns are permitted.
Thus, Option D is the correct Sentence which has a less formal tone.
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