I think the answer is c because the cooler summers help cool down the earth preventing global warming
        
             
        
        
        
The effect of such toxic chemicals to the body is that they stimulate uncontrolled cell division. Uncontrolled cell division or cells proliferation may lead to cancer. The unchecked cell growth results to mutations in genes that can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. 
        
             
        
        
        
Yes that's right, its True, are structures that have specific functions
        
                    
             
        
        
        
Answer:
The treatment of wastewater with microbes. 
Explanation:
It would be the best because Waste water management is the serious issue in today's world!