Human evolution known to be a process in which species adapt to certain conditions of life, and in the battle of life and death, they are forced to become stronger in order to survive in the world. Diseases have always been present during the evolution, acting themselves as a natural selector-the weaker organisms get sick and die.
        
             
        
        
        
Answer:
Look at my explanation (I have notes on this)
Explanation:
•They divided people off based on their purity 
•Government: they were ruled by kings
•Their writing contained 400 symbols, both pictographs and phonetic characters
•Their cities had high walls and laid out in grid system (Citadel was a watch tower and one of the major buildings)
•They had polytheistic religion called Hinduism 
 
        
             
        
        
        
Answer:
well childhood disease is diseases that happens in childhood like chickenpox and etc 
I hope it helps 
 
        
                    
             
        
        
        
Answer:
C
Explanation:
Ice-covered surfaces are highly reflective of the sun's rays therefore prevent those areas from warming as much as the areas where the ice is replaced with darker, less reflective surfaces which absorb heat and thus contribute more to global warming. Albedo is the percentage of radiation reflected by the earth's surface. Clear surfaces have greater albedo values than dark surfaces.
 
        
             
        
        
        
Answer:
The correct answer is CHLOROPHYLL