Let me help you... Okay, so, since the plant breathes only Carbon Dioxide, we can infer that that is a vital element in photosynthesis, which allows the plant to create sugars, or food, for itself. Without any air to breathe, the plant would first, sufficate, and second, no sugars will be created.
Reproduction? I could be wrong though
These preferences may have been advantageous in our evolutionary history, when food was less reliably available
-from quizlet
Answer:
the answer is Water vapor
