Answer:
conjunction
Step-by-step explanation:
Given sentence :
The lights are off and the radio is on
Here there are mainly two sentences :
Sentence 1 - "The lights are off"
Sentence 2 - "The radio is on"
The two sentences are joined together by using a conjunction, which is 'and' to form one single sentence 'The lights are off and the radio is on'.
Thus conjunction in English grammar is part of speech that is used to joined two parts of sentence or two clauses to form one single sentence.
Examples of conjuctions are and, if, but.
Thus, it is conjunction.
