Answer:
The carbon atom has unique properties that allow it to form covalent bonds to as many as four different atoms, making this versatile element ideal to serve as the basic structural component, or “backbone,” of the macromolecules.
All living things contain carbon in some form. Carbon is the primary component of macromolecules, including proteins, lipids, nucleic acids, and carbohydrates. Carbon's molecular structure allows it to bond in many different ways and with many different elements.
Explanation:
 
        
             
        
        
        
Answer:
Greenhouse gases 
Explanation:
Teddy is working for a nonprofit organization that urges people to stop using products with CFCs. Through this Initiative, Teddy's organization hopes to reduce the concentration of greenhouse gases in the atmosphere.
Greenhouse gases deplete the ozone layer thereby causing global warming as a result often increase in the intensity of Sun rays reaching the earth.
Example of greenhouse gases include chlorofluorocarbon, nitrogen, water vapor etc 
 
        
             
        
        
        
The builder can he fix it
        
             
        
        
        
Explanation:
anemia is termed to be a lack of red blood cells. 
Results in a lack of oxygen flow to vital organs causing, dizziness, fatigue, light headedness and tachycardia. 
 
        
                    
             
        
        
        
Answer:
D i think would be the best answer my studie in this part of health is low