Answer:
more force needed would be fulcrum at 12 with nickle at 1 the one closest to the nickle would go the furthest 
 
        
                    
             
        
        
        
I think it’s B 
Hope that’s right
        
                    
             
        
        
        
The phenotype is - 75 % red and 25 %brown. 
The genotype is hRhR - 25% 
hBkhR - 50% 
hBrhBk - 25%.
<h3><u>Explanation:</u></h3>
The cross given here is a simple dominant - recessive relationship between the three types of alleles of hair colour. The genes of this characteristics are present in autosomes, so will be segregated equally among all the sexes of the offsprings.
Now the genotype of auburn and red with black mother is given. So during gametogenesis, the gametes from the parents will be 
Father - hBr and hR 
Mother - hBk and hR
So, the probable combinations are hBrhBk, hBrhR and hBkhR. 
The frequency of the combinations are 25%, 25% and 50% respectively.
The phenotypic ratio will be red : brown as 3:1.
 
        
             
        
        
        
The fact that it's a renewable resource would be the only benefit. All of the others are disadvantages
        
             
        
        
        
Because the earth is moving around the sun but the sun isn’t revolving around anything