Isolated on the edge of an undiscovered galaxy, the Purple Planet was in a shambles. Since the toxic chemicals had been released like a ravenous tiger, the Purpletons could no longer breathe. A board of thinkers convened to figure out how to detoxify their precious purple land. Gertal led the meeting, loosening her mask just enough so she could be understood. But instead of words, a hacking cough rose up from her throat. The Purpletons looked at each other with growing angst, tightening their masks a little more.

Questions
What is the tone conveyed by the simile “released like a ravenous tiger”?

Negative and frightening

Cheerful and light

Mysterious and unclear

Funny and comedic

Negative and frightening. The comparison of the toxic chemicals being released like a ravenous tiger conveys a sense of danger, aggression, and destruction.