Answer: The primary focus of demography is population.
Explanation:
Demography is a scientific discipline that tells the movement of the population. Its primary function is to find the reasons for people's movements. In analyzing the factors that lead to population movements, demographics use huge data such as censuses, birth, death, and marriage records. By combining these data, demographics seeks to present accurate data. The demographic analysis encompasses broad social groups and defines them by various criteria such as education, religion, and nationality.
 
        
                    
             
        
        
        
18+ and you work 35+ hours per week to learn.
        
             
        
        
        
Answer:
there is no sun
Explanation:
plants and organisms need the sun to produce there food.
 
        
             
        
        
        
<span>Most of the sick and elderly people usually suffer from the greatest suppression of the immune system. They are prone on this because usually old person do not have enough sleep then it cause to down their immune system. Same as with sick person, they do not have the enough nutrients at vitamins.They become more stressful because of thinking too much about their health conditions thus they will also suffer from this.</span>