Answer:
So you need help? Mk.... 
Earth can be divided into three MAIN layers: the core, the mantle and the crust. Each of these layers can be further divided into two parts: the inner and outer core, the upper and lower mantle and the continental and oceanic crust. ... The inner core is solid, while the outer core is liquid.
 
        
                    
             
        
        
        
Alternating sugar and phosphate molecules also 4 types of nitrogen bases
        
             
        
        
        
I think the answer will be C
        
             
        
        
        
Answer:
the chemical weathering contributes to metamorphic rocks 
Explanation:
 
        
             
        
        
        
1)A-john take the cut in pay is positive because he still has a job, negative is he has less pay. B- loose his job he can get a new one with more pay .
2)A- positive Helen move to with her family and not be alone, negative she looses a semester at school. B- positive she stays a school and can finish the semester, negative she stays alone.
3.A) positive Bill picks pecan he likes it, negative he picks pecan he doesn't like it. B) positive He picks cherry he likes it, he picks cherry he doesn't like it