Variation or Variations URGENT!

[Shad]

Hello everbody,
plz help me frame this sentence confused in singular/ plural usage!!.

The variation/(s) in temperature with the height and length is/(are) shown in diagrams 1 and 2 respectively.
Thank you

[MikeNewYork]

Hello everbody,
plz help me frame this sentence confused in singular/ plural usage!!.

The variation/(s) in temperature with the height and length is/(are) shown in diagrams 1 and 2 respectively.
Thank you

Without seeing the diagrams, it's hard to say. The most important thing is keeping the subject and verb in agreement.

variation is
variations are

Since there are two diagrams and two parameters, I would probably use the plurals.

[Shad]

Thank you Mike

[MikeNewYork]

Thank you Mike

You're welcome.