<span>Osteoporosis is most likely to be affected by : Phosporus cycle.
 basically, our skeleton are the warehouse of two substance, calcium and phosporous. If our skeleton has insufficient amount of these two susbtance, it will weakened its composition and caused the osteoporosis</span>
        
                    
             
        
        
        
Each layer of earth has a different density the more in you go with the layers the more density is going to show up.
Crust-2.2g/cm^3
Upper mantle-3.4g/cm^3
Lower mantle-4.4g/cm^3
Outer core-9.9g/cm^3
Inner core-12.8g/cm^3
Hope I helped in something, Sorry if I didn't gave it my best shot:)
        
             
        
        
        
1. Spherical
2.Rod
3.Spiral
4.Comma
        
                    
             
        
        
        
Answer:
plants take in oxygen and release carbondioxide during respiration
Explanation:
 
        
             
        
        
        
You should move this question to Mathematics instead. Or at least physics.