Answer:
The carbon in the air will lessen over time. This is because it is being trapped in the walls of the biodome. This will affect living things negatively as the carbon cycle is a necessary part of nature and throwing off the balance of carbon in the carbon cycle will throw off the balance of the entire ecosystem within the biodome. 
 
        
             
        
        
        
  The element  that  is  likely  to form a ionic  bond  with potassium is  Cl  (answer A)
<em><u>Explanation</u></em>
 Ionic   bond  -  is a  bond formed  when  a  metal  and  a  non metal react.
Metal  loses  electron ( donate  electrons)  while  non metal   gains  electrons  ( accept  electrons)  to form  ionic  bond.
potassium  is a metal   while Chlorine(Cl)  is a non  metal.  They  react  to form an  ionic  bond   by potassium  donating  1 electron  while  chlorine accept 1 electron.
 
        
             
        
        
        
Hey there!
I believe the answer you're looking for is radio wave
Hope this helps!
        
                    
             
        
        
        
Answer:
False
"The energy contained in the food we eat is used to synthesize the energy that directly powers all of our cellular activities".
Explanation:
The food we eat undoubtedly contains energy. This energy is stored in the bonds of the molecules that make up the food. However, the food undergoes the process of digestion to yield glucose (a sugar). This glucose sugar is used in the process of CELLULAR RESPIRATION to synthesize a form of chemical energy usable by cells called ATP. 
ATP or Adenosine triphosphate is a molecule that stores chemical energy in living cells. It is the molecule that directly powers all of our cellular activities. Hence, the statement in this question is FALSE. The correct statement should be "The energy contained in the food we eat is used to synthesize the energy that directly powers all of our cellular activities".