Explanation:
abrasion, pressure release, thermal expansion and contraction and crystal growth.
 
        
             
        
        
        
A cell is <span>the smallest structural and functional unit of an organism. It effects the body by making and strengthening tissue, fighting unwanted cells, and by giving off oxygen throughout the body.</span>
        
                    
             
        
        
        
Answer:
A.the flow of energy between organisms in an ecosystem 
 
        
             
        
        
        
Since there are no choices, it will be difficult to answer your question.
Let's say these are the choices:
A. The liquid is a pure substance because it is colorless.
B. The liquid is a mixture because its temperature rises.
C. The liquid is a pure substance because it remains liquid when cold.
D. The liquid is a mixture because it has a gas dissolved in a liquid. 
your answer is D. The liquid is a mixture because it has a gas dissolved in a liquid. 
        
                    
             
        
        
        
Facial expressions, body movement and posture, gestures, eye contact, touch, space, and voice.