Answer:
an environmental (issue)
Explanation:
The person is talking about how throwing plastic out is "harmful to the planet" in which the planet = earth = the environment.
Thus, Nadine is talking about an environmental issue
Different- mount olympus is in nyc at the top of the empire state building (an actual place in the human world) & above the world (very top floor that does not really exists to humans); underworld is a place that non humans never see/know of & it's under the world
I believe so because Gatsby was a wealthy man who was poor at first and worked his way to become rich and the woman he loved was also rich and had a high class. The poorer people were lower class in the book/movie as well
This sentence is grammatically correct but it is not adverb phrase it is Syntax