Answer:
The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top.
Explanation:
The principle of superposition states that in an undeformed sequence of sedimentary rocks, each layer of rock is older than the one above it and younger than the one below it (Figures 1 and 2). Accordingly, the oldest rocks in a sequence are at the bottom and the youngest rocks are at the top.
 
        
                    
             
        
        
        
By definition, a sympatric speciation is a biological process wherein the evolution of a certain species most likely comes from their single ancestral species. Its main difference from the allopatric speciation is that the evolution does not necessary require to be physical in nature, therefore, it is most likely to occur less frequent.
        
             
        
        
        
Through mitosis is the way the body duplicates.
        
             
        
        
        
6. A
7. A
8. ?
9. A
10. A
i know A being the answer for all is kind of weird but i am pretty sure that’s what the answers are