Answer: your answer is A. The quality of air and water at places where people live,work, and go to school. 
Explanation: environment is a where people live together. 
 
        
             
        
        
        
Answer:
A. Rads, rems and SI units
Explanation:
The X-ray technician or the radiologist work in a field which allows them to study about "radiation." In relation to this, the units of<em> rad, rem</em> and<em> SI units </em>are being considered<em> units of measurements. </em>
The unit referring to absorbed radiation is known as "rad." On the other hand, "rem" means<em> roentgem equivalent man</em>. This measures the effect of the amount of radiation in low levels towards the human body. It is conventional to use the unit "rad" when measuring the radiation or by using "gray," an SI unit.
 
        
                    
             
        
        
        
Parents should be aware of how they discuss such issues when their kids are near. World news can cause stress. Children who see disturbing images on TV or hear ...
        
             
        
        
        
It would help bc building a dam would stop the water from crashing everywhere