The answer is C -
 because reversibility means when taking a break it'll be hard to get back on schedule
        
             
        
        
        
Explanation:
The darker the object, the better it emits heat, because it's a better absorber of light. On the other hand, a white object appears white because it reflects all the different wavelengths and absorbs little to no light.
 
        
                    
             
        
        
        
Answer:
true
Explanation:
the sun warms the atmosphere and warms the air which drives our weather 
 
        
             
        
        
        
Answer:
 Volume of balloon =  1000 cm^3
Explanation:
  The head of a normal person can be assumed as a sphere with radius 10 cm.
  Volume of sphere  , where r is the radius.
, where r is the radius.
  We have approximate radius = 10 cm.
   Approximate volume of head 
  In the given options the closest value to the approximate volume is 1000 cm^3.
  So, volume of head = Volume of balloon =  1000 cm^3