Answer:
Ice sheets flow outward from their dome like centers 
 
        
             
        
        
        
1) We must ration out the oils because we will be running out before 50 years & we must have new technology to replace the Fossil Fuels. 
2) If we allow the World's resources to be used as fast as they are then at some point we will run right out of that resource forever. 
3) There should be someone to take responsibility for the mining and usage of the World's resources before its too late and it should not be too long before we reach the point.
        
             
        
        
        
Answer:
The hemoglobin in an individual of Denver which lives higher altitude than the Philadelphia will be higher due to the higher elevation atmospheric pressure decreases that causes hemoglobin to nind to the RBCs and that will lowers the oxygen level in the body of the person. To overcome this drawback hemoglobin content is higher in people living at higher elevation.