If the chemical opposite of photosynthesis is when cells convert oxygen and carbs into carbon dioxide, water, and energy, then the opposite of when cells convert oxygen and carbs into carbon dioxide, water, and energy is what?

Answer choices:
- Greenhouse gases
 - Evaporation
 - photosynthesis
 - dangerous
 - slow and inefficient
 - dormant state
 - chemical messengers
 - It remains dormant

 

   photosynthesis       