An educated person should know English, German, Ukrainian, and Russian do you agree these are the languages of science it also depends on your citizenship
Since when is German, Ukrainian, and Russian a "language of science"? Hell, why not Latin, Ancient Greek, and Sanskrit while we are at it? I would argue those are more "languages of science" than any of those you just mentioned.
depends on where they live. If they live near Russia or Ukraine or Germany but sure. If they live in Mexico Russian is about as useless as Klingon I'm not sure how their languages of science what that even means. But yes it depends on your citizenship.
Who the heck needs Ukrainian or Russian or even German? English, Spanish, French and Chinese are spoken by most people.
Instead of getting butt hurt, explain what the **** you mean. Language of science doesn't make sense. Science can be pursued in any language.