Given that the density of gold is 19.3 g/mL and sand is 3.1 g/mL, does this seem like a scientifically reasonable plan?

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest

it's 3.2 on edge, i just took the test.