Answer:
The solution is gonna work by carbon dioxide being removed from atmosphere by this solution. 
Explanation:
Hope it helps you:)
 
        
                    
             
        
        
        
Answer:
Your answer is B). Massive stars undergo a supernova at the red giant phase.
 
        
             
        
        
        
Every cell has a cytoplasm
        
             
        
        
        
When homeostasis is not maintained, the body cannot function properly and illness may ensure. Homeostasis is the process in which the body's overall internal environment is kept constant in response to any external environmental changes. This involves maintaining stability in different body systems.
 
        
                    
             
        
        
        
Ecosystem and pond, 
not sure though but good luck !