In the informational text "are dogs dumb? " the author uses a humorous tone. which of the following text excerpts supports this?

Just based off of my common knowledge of humor, I would say personally that "1. Is Rover really any brighter than a hamster, a chicken, or that kid who's always eating Play-Doh? " supports the idea that the informational text uses a humorous tone.

what did the protagonist say?

onto a large boat, and mark the water level that the boat sinks to. then, take the elephant out and put a bunch of marked weights onto the boat until it reaches the same water level. add up the masses of the weights to get the weight of the elephant.