Answer:
Yes, the author uses diction that is lighthearted and informal.
Explanation:
We can see that the author used formal academic diction by using formal (or cultured) language without colloquial (or informal), regional or slang expressions; that is. The author wrote with grammatical rigor and syntactically correct sentences. The paragraph was composed with a wealth of vocabulary, trying not to repeat words in paragraphs and passing on direct, clear and focused information.