To calculate the population density, you will divide the population by the size of the area. Hope I helped!
 
        
                    
             
        
        
        
Energy comes from making bonds in carbon dioxide and water.
        
             
        
        
        
Need a picture of the diagram pls
        
             
        
        
        
Answer:
A. Primary dimensions are less changeable, while secondary dimensions can change and are less visible.
Explanation:
The differences between primary and secondary dimension of diversity are as follows - 
A) Primary Dimension
a) Primary dimension are those which are salient and hence they cannot change
b) Some common examples of primary dimensions are - ethnicity, sexual orientation, ethnicity,  gender, race, physical abilities/qualities, age etc. 
A)  Secondary Dimension
a) Secondary dimension are not only limited to specific features and hence they can change with time. 
b) Some common examples of secondary dimension are - geographic location, marital  status, parental status. work experiences, educational background, income,military experience, religious beliefs, etc. 
Hence, option A is correct