Here is a tremendous amount of information on #1.
https://www.google.com/search?client=firefox-b-1-d&q=advantages+and+disadvantages+of+ketones+on+humans
Then for #2 you take the information, especially that from Wikipedia, and translate that information to society and how ketones affect humans and society and the environment.
1) The advantages and disadvantages of ketones affecting the human body.
2) The advantages and disadvantages of ketones affecting the environment and society
I did look these question up on google but I couldn't find the answers to these questions
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