Answer:
Photosynthesis adds carbon dioxide to the air
Explanation:
 
        
             
        
        
        
Answer:
Might save some lives and also vaccine could reduce a chance of future outbreaks. Only if the patient is aware of the risk that might happen and agreed to use the drug.
 
        
             
        
        
        
Answer:
Photosynthesis uses carbon dioxide to make sugar and produces oxygen as a byproduct. Respiration uses oxygen to release energy from stored sugar and produces carbon dioxide as a byproduct. ... However, if the plants are growing, then over a period of 24 hours they will produce more oxygen than they consume.
 
        
                    
             
        
        
        
Im not sure but im guessing its B)