Answer:
carbon, hydrogen, nitrogen and oxygen 
Explanation:
mostly, combination of carboxylic and amine groups
 
        
             
        
        
        
Explanation:
In thermoplastics, the arrangement of monomeric units is linear and in thermosetting plastics, it is cross-linked. Thermoplastics are usually soft, weak and less brittle, so can get soften on heating and stiffen on cooling. They can be melted, remoulded and recycled easily.
 
        
             
        
        
        
Friction because it is the answer that I know because I am smart
        
             
        
        
        
Humans, chimpanzees, gorillas, and orangutans are all part of the family of organisms called Hominidae. So monkeys would be your best bet.
 
        
             
        
        
        
The web energy gain in fermentation is 2 ATP molecules<span>/glucose molecule. In both lactic acid and alcoholic fermentation, all the NADH produced in glycolysis is consumed in fermentation, so there is no web NADH production, 
I hope this helped[;</span>