Answer: I believe the answer is C 
 
        
                    
             
        
        
        
Microorganisms such as bacteria can be removed by disinfection. Certauns substances called biocides are addes to water to make it pure. Purification can also be done by UV-light .
        
             
        
        
        
The correct answer should be<span> D) conserving natural resources without harming the environment
Instead of using new resources, you can use the waste from previous production and recycle it for the sake of creating something else, which preserves the resoruces and doesn't harm the environment.</span>
        
             
        
        
        
Answer:
B. Cellular Respiration 
Explanation:
Because u have to think which one does the samething as photosynthesis 
 
        
             
        
        
        
The answer is C, the membrane is in charge of what enters and leaves the cell