Multiple choice

Plants take in ___________ from the atmosphere to use during photosynthesis.

  1. Oxygen

  2. Carbon Dioxide

  3. Nitrogen

  4. Phosphorus

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Plants require carbon dioxide as a reactant in the photosynthesis process to produce glucose. Oxygen is actually a byproduct of this process, not a reactant.