C. Protective over young cubs
        
                    
             
        
        
        
A scientific model is a claim or a theory that helps explain how a phenomenon works or how it undergoes process. This models provides scientists an understanding of the object or a situation undergoes change and generate certain outcomes or effects.
        
             
        
        
        
 Answer:
1. Thin Humus layer, minerals deep beneath the surface
2.Solar energy
Explanation:
I just took the test and got it right.