C. Amplitude
The amplitude and hight interfere in sound. The higher and the more amplitude there is, higher will be the sound and vice versa.
Hope it helped,
BioTeacher101
(If you have any questions feel free to ask them in the comments)
        
                    
             
        
        
        
Answer:
D
Explanation:
it just is i  dont know y i just know it is D
 
        
                    
             
        
        
        
<span>vegetative propagation.
Budding and grafting. It is mainly used for propagating a plant. In layering sometimes the portion of the aerial stem grows roots while it is still attached to the main plant and then it is separated from the main plant and allowed to grow on its own. This is another technique used for layering. </span>
        
             
        
        
        
Answer:
buffers
Explanation:
Buffers neutralize acids and bases.