Answer:
net power is + 2.25 D
Explanation:
Given data 
distance vision = -0.25 D
near vision = + 2.50 D
to find out
net power 
solution
we have given a person lens power for near is - 0.25 diopter and lens power for near power is  +2.50 diopter so
net power is sum of both the power vision
so
net power = distance + near power
put both value we get net power 
net power = ( -0.25 D) + ( + 2.50 D)
net power = + 2.25 D
so net power is + 2.25 D
 
        
             
        
        
        
Answer:
it can cause wear and tear and reduces efficiency as energy is lost.
Explanation:
 
        
             
        
        
        
Answer:
move the decimal 6 places to the left.
Explanation:
um I assume you meant to say area m^3