Answer:
P waves are compressional which means they move through a solid or liquid by pushing or pulling similar to the way the sound travels through air, the particles of the material a P wave pushes through moves in the direction of the P waves energy, this is called the direction of wave propagation
 
        
             
        
        
        
Answer:
Sam is correct. It is a chemical change and the contents should be in D. for compound.
Explanation:
This answer is correct because I just took the USA test prep
Good Luck!
 
        
                    
             
        
        
        
i think it is D. B. AND C. im sorry if im wrong
 
        
             
        
        
        
Catalase<span> is a common enzyme </span>found<span> in nearly all </span>living organisms<span> exposed to oxygen</span>
        
             
        
        
        
Answer:
Technology can change society through what becomes popular, like the cell phones that most people today carry with them, and the fact that they have evolved into phones with computer capabilities.
Explanation: