Roberto has a sample of an unknown liquid. the label in the bottle of the sample indicates that the liquid has a mass of 117 grams and a volume of 15 cubic centimeters.

You can identify the liquid by finding the density which is 117/15= 7.8, and since density is unique to its substance, use a density chart and find what liquid has a density of 7.8

Volcanoes make new rocks so not ahotspots are the the stuff that makes volcanoes mid atlantic ridge(mar cause i’m lazy) is a constructive plate boundary so it makes sense that new rocks would be found near it, also the mar is in the middle of the ocean so it fits the description deep ocean trench, umm, there’s no ocean trenches to where you’re goingso the mar is most likely the answeri wouldn’t trust me but hey why not