Question

the root junc means join. what does the word adjunct mean?
something that has harmful effects
something that provides evidence
something that is added to another thing

Explanation:

The prefix "ad-" means "to/toward", and the root "junc" means "join". Combining these, "adjunct" refers to something joined or added to another main thing. The other options do not align with this etymology.

Answer:

something that is added to another thing