what is superscripted and subscripted ...?

Answer 1

Superscript is that small text raised. Use <sup>
Subscript is that small text at the bottom. Use <sub>

Answer 2

¹ is a superscript for example.

Answer 3

superscript is upward
subscript is downword

Answer 4

superscript means what we write in the powers like x^2
subscript means what we write in the base like log to the base 10. I hope u understand