Answer:
mist our dew not sure i think mist
Explanation:
 
        
                    
             
        
        
        
Answer:
A scientific model is a representation model for a certain scientific concept. Scientific models make it easier to study a phenomenon as they tend to model out the exact phenomenons. 
A drawing of an skeleton would be unclear as the children might not be able to locate certain features in the drawing. For example, a certain joint could be missed by the teacher in the drawing or the child might not exactly be able to locate where the joint or bone is present.
But as the model will be more real to the actual skeleton system hence, studying through a skeleton will make it a lot easier to study the human skeletal system.
 
        
             
        
        
        
Answer:
Convection currents in the earth's magma might drive plate motion .
Explanation:
Magma is the molten rock below the crust, in the mantle. Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents. These currents cause the movement of the plates inside the planet ..
 
        
             
        
        
        
<span>It is the biosphere, which includes all living organisms and ecosystems is the highest physical level of biological study.</span>