Answer:
The carbon dioxide (CO2) emitted from power plants each year doesn't have to go into the atmosphere. Researchers are optimistic that within the next decade we will be able to affordably capture CO2 waste and convert it into useful molecules for feedstock, biofuels, pharmaceuticals, or renewable fuels.
 
        
             
        
        
        
Answer:
this option is correct the amount of heat required to turn a mole of a solid into a liquid
 
        
                    
             
        
        
        
An ionic compound can be formed through the existence of valency above the compound e.g NH4 which have +3 as it's ionic charge
        
             
        
        
        
The answer is 8 :)
All nobel gases have 8 outer electrons.