What is the role of $RNA$ polymerase $III$ in the process of transcription in Eukaryotes?

Which form of $RNA$ is most heterogeneous?

Which of the following statements are correct?
$(i)$ From one molecule of $\text{DNA}$,several molecules of $\text{RNA}$ can be formed.
$(ii)$ The $\text{RNA}$ forming part is known as the translational unit.
$(iii)$ The promoter is located at the $5'$ upstream end.
$(iv)$ The promoter and terminator flank the structural gene in a transcription unit.

Out of the two strands of $DNA$,one is carrying genetic information for transcription and it is called:

$m-RNA$ is produced in the . . . . . . .

Removal of $RNA$ polymerase $III$ from nucleoplasm will affect the synthesis of