Answer: 
1. watershed 
2. point
3. nonpoint
Explanation:
The land that supplies water to a river system is called a watershed 
Pollution from a single, identifiable source is called point
Pollution that is difficult to link to a particular origin is called  nonpoint
 
        
                    
             
        
        
        
Answer:
I think it might be a closed system 
 
        
             
        
        
        
Answer:
When heat gets transferred through electromagnetic waves that move through space
.
Explanation:
Radiation is the propagation of energy in the form of electromagnetic waves or subatomic particles through a vacuum or a material medium.
 
        
             
        
        
        
Answer:
Monera
Explanation:
This organism is only bacteria (bacilli bacteria). They are simple unicellular organism; they have no nucleus. They barely have organelles. These organism in the garbage are heterotrophic /saprophytic and cause the composition of the organic molecules (such as the discarded foods).  
 
        
             
        
        
        
Answer:
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