Answer:
abnormal development or growth especially of cells.
 
        
                    
             
        
        
        
Answer:
It is rock. hope it helps
Explanation:
 
        
                    
             
        
        
        
Answer:
C. Independent variable
Explanation:
The independent variable in an experiment is the variable that the experimenter manipulates or changes in order to effect a measurable response in the dependent variable. 
According to this question, an experiment is conducted to determine what concentration of disinfectant is most effective in killing bacteria. The independent variable is the CONCENTRATION OF DISINFECTANT because it is the variable being changed or manipulated. 
 
        
             
        
        
        
Drilling with pipe and mud
        
             
        
        
        
<span>During photosynthesis: Light energy is absorbed by chlorophyll, a green substance found in chloroplasts in some plant cells and algae. Absorbed light energy is used to convert carbon dioxide (from the air) and water (from the soil) into a sugar called glucose. Oxygen is released as a by-product.</span>