How do you write What sound elephants make in Japanese?

There are a couple of ways to write "What sound elephants make?" in Japanese, depending on the level of formality you want:

Formal:

* 象はどんな音を出しますか？ (Zō wa donna oto o dashimasu ka?)

* This uses the polite verb form "dashimasu" and is appropriate for formal situations like writing or speaking to someone you don't know well.

Informal:

* 象は何の音出すの？ (Zō wa nan no oto dasu no?)

* This uses the casual verb form "dasu no" and is appropriate for speaking to friends or family.

Onomatopoeia:

* 象は「パオーン」って鳴くよ。 (Zō wa "paoon" tte naku yo.)

* This uses the onomatopoeia "paoon" to represent the elephant's trumpeting sound. This is the most direct and natural way to describe the sound of an elephant in Japanese.

You can choose the appropriate form based on the context and your relationship with the person you are speaking to.