Reactants of photosynthesis include light energy, H2O, and CO2. So I would imagine it’s H2O and CO2
        
                    
             
        
        
        
Answer:
We can predict or comment about reactivity of elements by taking into consideration their electronic configuration that imparts stability or un-stability to an atom.
Explanation: 
Reactivity : It refers to the affinity of a substance to combine with other substance .
Elements are mainly of two types :
In terms of metals or non metals it can be defined as tendency to loose or gain electrons .
- On the basis of it ,we can easily make out or comment about the reactivity of element (metal or non metal ) .Like ,if an element has completely filled outermost shell or we can say have stable electronic configuration then it is already stable .Therefore , it won't react with any other element .
- But, if its outer shell isn't complete then in order to attain stability it will combine or react with other .Hence , we can say it will be quite reactive .
 
        
             
        
        
        
<span>in the cell wall, it activates inflammation.</span>
        
             
        
        
        
<span>This indicates that energy consumption could have fluctuated. </span>