Darkness has a negative impact on photosynthesis, and light is necessary for photosynthesis, a process that produces oxygen. Given these facts, darkness has a negative impact on which process of a plant among the following options:
- slow and inefficient
 - chemical changes
 - circulatory systems
 - most organisms
 - fossil fuels
 - Abnormal cell growth
 - deoxyribonucleic acid
 - Oxygen production


 

        Oxygen production 