Question

these signals are off the charts! i think we found something big! exclaimed tara. lets verify the data first, replied theo cautiously. how does the author describe the characters? appearances actions dialogue

Explanation:

The author describes the characters through their spoken words (Tara's exclamation and Theo's reply), which is dialogue. There's no description of their appearances or actions (like what they do physically), just their speech.

Answer:

Dialogue