A.private land cannot be used to operate businesses
        
             
        
        
        
Answer:
b. quantitative observation 
if its wrong sorry.
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The correct option is C.
In chemistry, a radical is defined as an atom, ion or molecule that possess an unpaired valence electron. Generally, radicals are highly reactive chemically. Examples of radicals are hydroxyl, hypochlorite, nitrate, carbonate, oxalate, permanganate, etc. Free radicals combine with one another or with single atoms to produce neutral substances. In the question given above, the two compounds given in option C have the same type of radical, which is hydroxyl radical. 
        
                    
             
        
        
        
ATP is broken down into ADP to quickly provide energy. Adding a phosphate group to ADP forms ATP and energy.
        
             
        
        
        
Answer: living and fossil organisms evolved
Explanation: