"Are there more grains of sand than stars?"
Translation:Ĉu estas pli da sableroj ol steloj?
I came across this sentence as a multiple choice question and the only "correct" answer was "Ĉu estas pliaj sableroj ol steloj?". Actually this is not a correct answer, because it doesn't mean "Are there more sand grains than stars" but "Are there other sand grains than stars", what would only would make sense, if sand grains were stars, what they are not - as far as I know.
Probably. Many stars have planets. Some of these planets will be rocky planets, like Earth and Mars. Rocky planets will probably have collisions with asteroids or if they have ever had atmosphere will undergo weathering, either process will produce sand. It is therefore very likely that there are more grains of sand in the universe than stars.