There are three processes of aerobic cellular respiration; glycolysis, the Kreb's cycle and the electron transport train. The electron transport train synthesises the most ATP. 
        
             
        
        
        
Answer:
Metamorphic rocks are almost always harder than sedimentary rocks. They are generally as hard and sometimes harder than igneous rocks. They form the roots of many mountain chains and are exposed to the surface after the softer outer layers of rocks are eroded away.  
Because their mineral grains grew together tightly during metamorphism, they're generally strong rocks.
 
        
             
        
        
        
Answer:
This value is 4*(pi)* (2Gm/c^2)^2 for nonspinning black holes, with G= Newton's constant, c= speed of light, and m= mass of the black hole. The 3-dimensional spatial volume inside a black hole, in contrast, depends explicitly on the definition of time, and can even be time dependent, or zero.
Explanation:
hope this helps
 
        
             
        
        
        
I would pick younger and thinner, but follow your gut because I really don't know