Answer:
B is the answer...............
 
        
             
        
        
        
When the swing is raised and released, it will move freely back and forth due to the force of gravity on it. The swing continues moving back and forth without any extra outside help until friction between the air and the swing and between the chains and the attachment points slows it down and eventually stops it.
 
        
             
        
        
        
Answer:
           x         y
x8     x8x     x8y
x8      x8x     x8y
The results of the punnet square show that:
They will not have a son who will be colour blind.
They will not have a daughter who is colour blind.
All the daughters born will be carriers of red- green colour blindness.
The genotype of the two parents will be:
Genotype of mother: x8,x8
Genotype of father: x, Y
 
        
             
        
        
        
I think it I A because it benifits