Answer: c.  Is spontaneous generation a valid explanation for maggots in meats?
Explanation:
 
        
             
        
        
        
1. Polymer refers to a lengthened, chain-like molecule comprising repeated units associated end to end.  
2. Ceramic refers to a hard, brittle, corrosion and heat tolerant substance formed by administering a non-metallic mixture of minerals to intense heat.  
3. Thermoset refers to the plastics, which exhibit low elongations and cannot get recycled again.  
4. Thermoplastic refers to the plastics, which exhibit high elongations and can be recycled.  
5. Crystal refers to the solid form originating from the organization of ions, atoms, or molecules in precise patterns of geometry.  
6. Composite refers to a carbon fiber entrenched in a polymer resin matrix.  
 
        
                    
             
        
        
        
Coal from swamp plants that formed millions of years ago.
        
                    
             
        
        
        
I’m pretty sure the answer is 4. 
Evaporites are rocks formed by the evaporation of water. They are sedimentary rocks. Common examples of evaporites include gypsum, anhydrite, and halite (common salt.) I hope this helps! :)
        
                    
             
        
        
        
2 kingdoms 
Plantae
And animalia
Hope that helped :D