Answer:
Towards the southern of the sound
Explanation:
As the motion of the source of sound is moving,the percieved sound frequency varies .this is known as Doppler effect.the sound waves emited by the sources tends to bunch up in front of the source and spread out behind the source.
Since the falcon is moving towards the sound,the frequency increases and so does the pitch of the sound
 
        
             
        
        
        
<span>The theory of plate tectonics helps to explain the </span>formation of the earthquakes.
        
                    
             
        
        
        
Answer:
A. Mutualism
Explanation:
<u>Mutualism</u> The bristle worm living with the hermit crab.
 
        
             
        
        
        
Is a permanent alteration in the DNA sequence that makes up a gene.