[pesfandiar]

If the difference in the speed of sound because of altitude and temperature makes a difference for you, you should probably research a bit farther than the Google's info box. I just see that as useful as answering trivia quiz questions.

[luck_fenovo]

I sort of agree. On the one hand, an approximate answer is fine for this use-case (especially when you can look down 2 inches and see the full context in the Wikipedia result without looking through) but perhaps it would be worthwhile on answers like that to say "Approximately" at the front just to be clear.